{
  "levels": [
    {
      "level": 0,
      "name": "Frozen evidence",
      "meaning": "Source excerpts with record IDs, baseline, revisions and text-time limits"
    },
    {
      "level": 1,
      "name": "Typed relations",
      "meaning": "Reference / semantic claim / membership / authorship / communication remain separate"
    },
    {
      "level": 2,
      "name": "Structural features",
      "meaning": "Distinct 1–3-hop reach; two-round neighbor-degree aggregation; betweenness; k-core"
    },
    {
      "level": 3,
      "name": "Groups",
      "meaning": "SCC condensation and three-resolution communities are structural; curated families are semantic annotations"
    },
    {
      "level": 4,
      "name": "Hypotheses",
      "meaning": "Candidate explanations require new adjudication or replay; never inserted as observed edges"
    }
  ],
  "scc_components": [
    {
      "specification": "URL + shorthand body",
      "component_id": 0,
      "size": 7,
      "prs": [
        210,
        216,
        227,
        230,
        234,
        237,
        240
      ],
      "internal_edge_ids": [
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:216:227",
        "reference:227:230",
        "reference:230:210",
        "reference:234:210",
        "reference:234:237",
        "reference:234:240",
        "reference:237:210",
        "reference:240:210"
      ],
      "condensation_level": 30,
      "predecessor_components": [
        189,
        197,
        201,
        204,
        206,
        211,
        213,
        214,
        221,
        226,
        232
      ],
      "successor_components": [
        4,
        216,
        223,
        234,
        240,
        241,
        244,
        246,
        247,
        248,
        254,
        260,
        265,
        273,
        274,
        277,
        282,
        310,
        320,
        365,
        368,
        370,
        375,
        376,
        379,
        427,
        436,
        498
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 1,
      "size": 4,
      "prs": [
        376,
        388,
        426,
        433
      ],
      "internal_edge_ids": [
        "reference:376:388",
        "reference:376:426",
        "reference:388:376",
        "reference:426:376",
        "reference:426:433",
        "reference:433:376"
      ],
      "condensation_level": 38,
      "predecessor_components": [
        14,
        22,
        28,
        36,
        40,
        108,
        119,
        134,
        148,
        365,
        371,
        380,
        382,
        418
      ],
      "successor_components": [
        272,
        391,
        428,
        442,
        445,
        447,
        484,
        508,
        516,
        520
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 2,
      "size": 3,
      "prs": [
        458,
        460,
        462
      ],
      "internal_edge_ids": [
        "reference:458:460",
        "reference:458:462",
        "reference:460:458",
        "reference:460:462",
        "reference:462:460"
      ],
      "condensation_level": 41,
      "predecessor_components": [
        445
      ],
      "successor_components": [
        452,
        453,
        455,
        483,
        484
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 3,
      "size": 3,
      "prs": [
        473,
        477,
        478
      ],
      "internal_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:477:473",
        "reference:478:473"
      ],
      "condensation_level": 3,
      "predecessor_components": [
        363,
        465,
        468,
        469,
        470,
        478,
        481,
        486,
        490,
        492
      ],
      "successor_components": [
        475,
        476,
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 4,
      "size": 2,
      "prs": [
        287,
        289
      ],
      "internal_edge_ids": [
        "reference:287:289",
        "reference:289:287"
      ],
      "condensation_level": 38,
      "predecessor_components": [
        0,
        172,
        204,
        241,
        265,
        282
      ],
      "successor_components": [
        286,
        287,
        288,
        292,
        295,
        297,
        311
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 5,
      "size": 1,
      "prs": [
        1
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        70
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 6,
      "size": 1,
      "prs": [
        2
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        36,
        40,
        70,
        106,
        108,
        119,
        134,
        148,
        271,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 7,
      "size": 1,
      "prs": [
        3
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        36,
        40,
        108,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 8,
      "size": 1,
      "prs": [
        4
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        36,
        40,
        70,
        108,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 9,
      "size": 1,
      "prs": [
        5
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        36,
        40,
        108,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 10,
      "size": 1,
      "prs": [
        6
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        36,
        40,
        108,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 11,
      "size": 1,
      "prs": [
        7
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        14,
        15,
        24,
        27,
        36,
        40,
        70,
        108,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 12,
      "size": 1,
      "prs": [
        8
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 13,
      "size": 1,
      "prs": [
        9
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        15
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 14,
      "size": 1,
      "prs": [
        10
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        11
      ],
      "successor_components": [
        1,
        16,
        27,
        28,
        36,
        40,
        108,
        119,
        134,
        148,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 15,
      "size": 1,
      "prs": [
        11
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        11,
        13
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 16,
      "size": 1,
      "prs": [
        12
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        14
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 17,
      "size": 1,
      "prs": [
        13
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        18,
        24,
        27,
        36,
        40,
        108,
        119,
        134,
        148
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 18,
      "size": 1,
      "prs": [
        14
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        17
      ],
      "successor_components": [
        27
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 19,
      "size": 1,
      "prs": [
        15
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 20,
      "size": 1,
      "prs": [
        16
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        36,
        40,
        108,
        119,
        134,
        148
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 21,
      "size": 1,
      "prs": [
        17
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        24
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 22,
      "size": 1,
      "prs": [
        18
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        1,
        23,
        24,
        33,
        36,
        40,
        108,
        119,
        134,
        148,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 23,
      "size": 1,
      "prs": [
        19
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        22
      ],
      "successor_components": [
        27
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 24,
      "size": 1,
      "prs": [
        20
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        11,
        17,
        21,
        22
      ],
      "successor_components": [
        27,
        36,
        40,
        108,
        119,
        134,
        148,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 25,
      "size": 1,
      "prs": [
        21
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        27,
        32,
        33,
        35,
        36,
        38,
        40,
        108,
        114,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 26,
      "size": 1,
      "prs": [
        22
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        27
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 27,
      "size": 1,
      "prs": [
        23
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        11,
        14,
        17,
        18,
        23,
        24,
        25,
        26
      ],
      "successor_components": [
        29,
        32,
        33,
        34,
        35,
        36,
        40,
        108,
        119,
        134,
        148,
        181,
        188,
        208,
        391,
        457,
        570
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 28,
      "size": 1,
      "prs": [
        24
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        14
      ],
      "successor_components": [
        1,
        33,
        36,
        40,
        108,
        114,
        119,
        134,
        148,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 29,
      "size": 1,
      "prs": [
        25
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        27
      ],
      "successor_components": [
        33
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 30,
      "size": 1,
      "prs": [
        26
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        70
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 31,
      "size": 1,
      "prs": [
        27
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        33
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 32,
      "size": 1,
      "prs": [
        28
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        25,
        27
      ],
      "successor_components": [
        33
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 33,
      "size": 1,
      "prs": [
        29
      ],
      "internal_edge_ids": [],
      "condensation_level": 4,
      "predecessor_components": [
        22,
        25,
        27,
        28,
        29,
        31,
        32
      ],
      "successor_components": [
        35,
        37,
        40,
        70,
        100,
        108,
        114,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 34,
      "size": 1,
      "prs": [
        30
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        27
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 35,
      "size": 1,
      "prs": [
        31
      ],
      "internal_edge_ids": [],
      "condensation_level": 5,
      "predecessor_components": [
        25,
        27,
        33
      ],
      "successor_components": [
        37,
        40,
        108,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 36,
      "size": 1,
      "prs": [
        32
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        6,
        7,
        8,
        9,
        10,
        11,
        14,
        17,
        20,
        22,
        24,
        25,
        27,
        28
      ],
      "successor_components": [
        1,
        40,
        43,
        44,
        108,
        119,
        134,
        148,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 37,
      "size": 1,
      "prs": [
        33
      ],
      "internal_edge_ids": [],
      "condensation_level": 6,
      "predecessor_components": [
        33,
        35
      ],
      "successor_components": [
        40,
        108,
        119,
        134,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 38,
      "size": 1,
      "prs": [
        34
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        25
      ],
      "successor_components": [
        43,
        44,
        70,
        100,
        104,
        107,
        188
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 39,
      "size": 1,
      "prs": [
        35
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        70
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 40,
      "size": 1,
      "prs": [
        36
      ],
      "internal_edge_ids": [],
      "condensation_level": 7,
      "predecessor_components": [
        6,
        7,
        8,
        9,
        10,
        11,
        14,
        17,
        20,
        22,
        24,
        25,
        27,
        28,
        33,
        35,
        36,
        37
      ],
      "successor_components": [
        1,
        43,
        44,
        55,
        58,
        70,
        103,
        108,
        119,
        134,
        145,
        148,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 41,
      "size": 1,
      "prs": [
        37
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        43
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 42,
      "size": 1,
      "prs": [
        38
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        43,
        44
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 43,
      "size": 1,
      "prs": [
        39
      ],
      "internal_edge_ids": [],
      "condensation_level": 8,
      "predecessor_components": [
        36,
        38,
        40,
        41,
        42
      ],
      "successor_components": [
        44,
        94
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 44,
      "size": 1,
      "prs": [
        40
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        36,
        38,
        40,
        42,
        43
      ],
      "successor_components": [
        53,
        54,
        228
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 45,
      "size": 1,
      "prs": [
        41
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        54,
        70,
        76,
        103,
        228
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 46,
      "size": 1,
      "prs": [
        42
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 47,
      "size": 1,
      "prs": [
        43
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        54,
        63,
        76,
        228
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 48,
      "size": 1,
      "prs": [
        44
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        49,
        54,
        63,
        70,
        103,
        113
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 49,
      "size": 1,
      "prs": [
        45
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        48,
        50
      ],
      "successor_components": [
        70
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 50,
      "size": 1,
      "prs": [
        46
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        49
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 51,
      "size": 1,
      "prs": [
        47
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        53,
        54
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 52,
      "size": 1,
      "prs": [
        48
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        53,
        54,
        56,
        59,
        61,
        76,
        96,
        228
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 53,
      "size": 1,
      "prs": [
        49
      ],
      "internal_edge_ids": [],
      "condensation_level": 10,
      "predecessor_components": [
        44,
        51,
        52
      ],
      "successor_components": [
        54,
        70,
        76,
        228
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 54,
      "size": 1,
      "prs": [
        50
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        44,
        45,
        47,
        48,
        51,
        52,
        53
      ],
      "successor_components": [
        56
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 55,
      "size": 1,
      "prs": [
        51
      ],
      "internal_edge_ids": [],
      "condensation_level": 8,
      "predecessor_components": [
        40
      ],
      "successor_components": [
        60,
        63,
        70
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 56,
      "size": 1,
      "prs": [
        52
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        52,
        54
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 57,
      "size": 1,
      "prs": [
        53
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        58,
        59,
        60,
        61,
        63,
        70
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 58,
      "size": 1,
      "prs": [
        54
      ],
      "internal_edge_ids": [],
      "condensation_level": 8,
      "predecessor_components": [
        40,
        57
      ],
      "successor_components": [
        59,
        60,
        63
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 59,
      "size": 1,
      "prs": [
        55
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        52,
        57,
        58
      ],
      "successor_components": [
        62,
        64,
        70,
        113
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 60,
      "size": 1,
      "prs": [
        56
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        55,
        57,
        58
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 61,
      "size": 1,
      "prs": [
        57
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        52,
        57
      ],
      "successor_components": [
        62,
        64,
        65,
        67,
        70,
        72,
        75,
        80,
        81,
        82,
        83,
        85,
        88,
        92,
        95,
        179
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 62,
      "size": 1,
      "prs": [
        58
      ],
      "internal_edge_ids": [],
      "condensation_level": 10,
      "predecessor_components": [
        59,
        61
      ],
      "successor_components": [
        63,
        64
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 63,
      "size": 1,
      "prs": [
        59
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        47,
        48,
        55,
        57,
        58,
        62
      ],
      "successor_components": [
        70,
        75,
        81,
        82,
        83,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 64,
      "size": 1,
      "prs": [
        60
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        59,
        61,
        62
      ],
      "successor_components": [
        67,
        70,
        72,
        73,
        75,
        80,
        81,
        83,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 65,
      "size": 1,
      "prs": [
        61
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        61,
        66
      ],
      "successor_components": [
        72
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 66,
      "size": 1,
      "prs": [
        62
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        65,
        67,
        72,
        74,
        75,
        80,
        81,
        82,
        83,
        85,
        88,
        92,
        95,
        103,
        119,
        134,
        137,
        148,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 67,
      "size": 1,
      "prs": [
        63
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        61,
        64,
        66
      ],
      "successor_components": [
        75,
        81,
        82,
        83,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 68,
      "size": 1,
      "prs": [
        64
      ],
      "internal_edge_ids": [],
      "condensation_level": 17,
      "predecessor_components": [
        72,
        73,
        75,
        77,
        80
      ],
      "successor_components": [
        105,
        496,
        504,
        511,
        515,
        551,
        555,
        558
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 69,
      "size": 1,
      "prs": [
        65
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        75,
        80,
        81,
        82,
        83,
        85,
        88,
        92,
        95,
        96,
        104
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 70,
      "size": 1,
      "prs": [
        66
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        5,
        6,
        8,
        11,
        30,
        33,
        38,
        39,
        40,
        45,
        48,
        49,
        53,
        55,
        57,
        59,
        61,
        63,
        64
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 71,
      "size": 1,
      "prs": [
        67
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        72,
        75,
        83,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 72,
      "size": 1,
      "prs": [
        68
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        61,
        64,
        65,
        66,
        71
      ],
      "successor_components": [
        68,
        75,
        80,
        83,
        85,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 73,
      "size": 1,
      "prs": [
        69
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        64
      ],
      "successor_components": [
        68,
        83,
        85,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 74,
      "size": 1,
      "prs": [
        70
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        66
      ],
      "successor_components": [
        79,
        80,
        81,
        83,
        85,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 75,
      "size": 1,
      "prs": [
        71
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        61,
        63,
        64,
        66,
        67,
        69,
        71,
        72
      ],
      "successor_components": [
        68,
        77,
        79,
        80,
        82,
        83,
        85,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 76,
      "size": 1,
      "prs": [
        72
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        45,
        47,
        52,
        53
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 77,
      "size": 1,
      "prs": [
        73
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        75
      ],
      "successor_components": [
        68,
        79
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 78,
      "size": 1,
      "prs": [
        74
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        104,
        107,
        108,
        111,
        112,
        113
      ],
      "successor_components": [
        80,
        81,
        85,
        88,
        91,
        92,
        93,
        95,
        96,
        98
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 79,
      "size": 1,
      "prs": [
        75
      ],
      "internal_edge_ids": [],
      "condensation_level": 15,
      "predecessor_components": [
        74,
        75,
        77
      ],
      "successor_components": [
        80,
        82
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 80,
      "size": 1,
      "prs": [
        76
      ],
      "internal_edge_ids": [],
      "condensation_level": 16,
      "predecessor_components": [
        61,
        64,
        66,
        69,
        72,
        74,
        75,
        78,
        79
      ],
      "successor_components": [
        68,
        84,
        85,
        96
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 81,
      "size": 1,
      "prs": [
        77
      ],
      "internal_edge_ids": [],
      "condensation_level": 19,
      "predecessor_components": [
        61,
        63,
        64,
        66,
        67,
        69,
        74,
        78,
        86
      ],
      "successor_components": [
        85
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 82,
      "size": 1,
      "prs": [
        78
      ],
      "internal_edge_ids": [],
      "condensation_level": 16,
      "predecessor_components": [
        61,
        63,
        66,
        67,
        69,
        75,
        79
      ],
      "successor_components": [
        84,
        88,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 83,
      "size": 1,
      "prs": [
        79
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        61,
        63,
        64,
        66,
        67,
        69,
        71,
        72,
        73,
        74,
        75
      ],
      "successor_components": [
        84,
        88,
        91,
        92,
        95,
        96
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 84,
      "size": 1,
      "prs": [
        80
      ],
      "internal_edge_ids": [],
      "condensation_level": 17,
      "predecessor_components": [
        80,
        82,
        83
      ],
      "successor_components": [
        86
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 85,
      "size": 1,
      "prs": [
        81
      ],
      "internal_edge_ids": [],
      "condensation_level": 20,
      "predecessor_components": [
        61,
        66,
        69,
        72,
        73,
        74,
        75,
        78,
        80,
        81
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 86,
      "size": 1,
      "prs": [
        82
      ],
      "internal_edge_ids": [],
      "condensation_level": 18,
      "predecessor_components": [
        84
      ],
      "successor_components": [
        81,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 87,
      "size": 1,
      "prs": [
        83
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 88,
      "size": 1,
      "prs": [
        84
      ],
      "internal_edge_ids": [],
      "condensation_level": 17,
      "predecessor_components": [
        61,
        63,
        64,
        66,
        67,
        69,
        71,
        72,
        73,
        74,
        75,
        78,
        82,
        83
      ],
      "successor_components": [
        89,
        90,
        91,
        92,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 89,
      "size": 1,
      "prs": [
        85
      ],
      "internal_edge_ids": [],
      "condensation_level": 18,
      "predecessor_components": [
        88
      ],
      "successor_components": [
        90,
        91
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 90,
      "size": 1,
      "prs": [
        86
      ],
      "internal_edge_ids": [],
      "condensation_level": 19,
      "predecessor_components": [
        88,
        89
      ],
      "successor_components": [
        91
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 91,
      "size": 1,
      "prs": [
        87
      ],
      "internal_edge_ids": [],
      "condensation_level": 20,
      "predecessor_components": [
        78,
        83,
        88,
        89,
        90
      ],
      "successor_components": [
        93
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 92,
      "size": 1,
      "prs": [
        88
      ],
      "internal_edge_ids": [],
      "condensation_level": 19,
      "predecessor_components": [
        61,
        63,
        64,
        66,
        67,
        69,
        71,
        72,
        73,
        74,
        75,
        78,
        82,
        83,
        86,
        88
      ],
      "successor_components": [
        93,
        95
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 93,
      "size": 1,
      "prs": [
        89
      ],
      "internal_edge_ids": [],
      "condensation_level": 21,
      "predecessor_components": [
        78,
        91,
        92
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 94,
      "size": 1,
      "prs": [
        90
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        43
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 95,
      "size": 1,
      "prs": [
        91
      ],
      "internal_edge_ids": [],
      "condensation_level": 20,
      "predecessor_components": [
        61,
        63,
        64,
        66,
        67,
        69,
        71,
        72,
        73,
        74,
        75,
        78,
        82,
        83,
        86,
        88,
        92
      ],
      "successor_components": [
        98,
        145
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 96,
      "size": 1,
      "prs": [
        92
      ],
      "internal_edge_ids": [],
      "condensation_level": 17,
      "predecessor_components": [
        52,
        69,
        78,
        80,
        83
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 97,
      "size": 1,
      "prs": [
        93
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 98,
      "size": 1,
      "prs": [
        94
      ],
      "internal_edge_ids": [],
      "condensation_level": 21,
      "predecessor_components": [
        78,
        95
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 99,
      "size": 1,
      "prs": [
        95
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        102
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 100,
      "size": 1,
      "prs": [
        96
      ],
      "internal_edge_ids": [],
      "condensation_level": 5,
      "predecessor_components": [
        33,
        38
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 101,
      "size": 1,
      "prs": [
        97
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        103,
        104,
        107,
        119,
        134,
        141,
        148,
        149,
        150,
        151,
        154,
        181,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 102,
      "size": 1,
      "prs": [
        98
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        99
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 103,
      "size": 1,
      "prs": [
        99
      ],
      "internal_edge_ids": [],
      "condensation_level": 8,
      "predecessor_components": [
        40,
        45,
        48,
        66,
        101
      ],
      "successor_components": [
        107
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 104,
      "size": 1,
      "prs": [
        100
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        38,
        69,
        101
      ],
      "successor_components": [
        78,
        107
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 105,
      "size": 1,
      "prs": [
        101
      ],
      "internal_edge_ids": [],
      "condensation_level": 18,
      "predecessor_components": [
        68
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 106,
      "size": 1,
      "prs": [
        102
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        6
      ],
      "successor_components": [
        107
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 107,
      "size": 1,
      "prs": [
        103
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        38,
        101,
        103,
        104,
        106
      ],
      "successor_components": [
        78
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 108,
      "size": 1,
      "prs": [
        104
      ],
      "internal_edge_ids": [],
      "condensation_level": 8,
      "predecessor_components": [
        6,
        7,
        8,
        9,
        10,
        11,
        14,
        17,
        20,
        22,
        24,
        25,
        27,
        28,
        33,
        35,
        36,
        37,
        40
      ],
      "successor_components": [
        1,
        78,
        112,
        113,
        115,
        116,
        119,
        123,
        125,
        134,
        135,
        137,
        140,
        142,
        148,
        149,
        150,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 109,
      "size": 1,
      "prs": [
        105
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 110,
      "size": 1,
      "prs": [
        106
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 111,
      "size": 1,
      "prs": [
        107
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        78,
        113,
        125
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 112,
      "size": 1,
      "prs": [
        108
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        108
      ],
      "successor_components": [
        78,
        113
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 113,
      "size": 1,
      "prs": [
        109
      ],
      "internal_edge_ids": [],
      "condensation_level": 10,
      "predecessor_components": [
        48,
        59,
        108,
        111,
        112
      ],
      "successor_components": [
        78
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 114,
      "size": 1,
      "prs": [
        110
      ],
      "internal_edge_ids": [],
      "condensation_level": 5,
      "predecessor_components": [
        25,
        28,
        33
      ],
      "successor_components": [
        115,
        118,
        124,
        133,
        137,
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 115,
      "size": 1,
      "prs": [
        111
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        108,
        114
      ],
      "successor_components": [
        137
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 116,
      "size": 1,
      "prs": [
        112
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        108
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 117,
      "size": 1,
      "prs": [
        113
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        137,
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 118,
      "size": 1,
      "prs": [
        114
      ],
      "internal_edge_ids": [],
      "condensation_level": 6,
      "predecessor_components": [
        114,
        121,
        132
      ],
      "successor_components": [
        124,
        126,
        133,
        137
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 119,
      "size": 1,
      "prs": [
        115
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        6,
        7,
        8,
        9,
        10,
        11,
        14,
        17,
        20,
        22,
        24,
        25,
        27,
        28,
        33,
        35,
        36,
        37,
        40,
        66,
        101,
        108
      ],
      "successor_components": [
        1,
        134,
        148,
        150,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 120,
      "size": 1,
      "prs": [
        116
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        122
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 121,
      "size": 1,
      "prs": [
        117
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        118,
        122,
        129,
        130,
        133,
        134,
        135,
        137,
        146,
        147,
        148,
        149,
        150,
        172,
        181,
        188,
        227,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 122,
      "size": 1,
      "prs": [
        118
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        120,
        121
      ],
      "successor_components": [
        126,
        127,
        130,
        137
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 123,
      "size": 1,
      "prs": [
        119
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        108
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 124,
      "size": 1,
      "prs": [
        120
      ],
      "internal_edge_ids": [],
      "condensation_level": 7,
      "predecessor_components": [
        114,
        118
      ],
      "successor_components": [
        137,
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 125,
      "size": 1,
      "prs": [
        121
      ],
      "internal_edge_ids": [],
      "condensation_level": 9,
      "predecessor_components": [
        108,
        111
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 126,
      "size": 1,
      "prs": [
        122
      ],
      "internal_edge_ids": [],
      "condensation_level": 7,
      "predecessor_components": [
        118,
        122
      ],
      "successor_components": [
        127,
        144
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 127,
      "size": 1,
      "prs": [
        123
      ],
      "internal_edge_ids": [],
      "condensation_level": 8,
      "predecessor_components": [
        122,
        126
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 128,
      "size": 1,
      "prs": [
        124
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        131,
        133,
        135,
        139,
        143,
        149,
        188
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 129,
      "size": 1,
      "prs": [
        125
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        121
      ],
      "successor_components": [
        130,
        135,
        144,
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 130,
      "size": 1,
      "prs": [
        126
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        121,
        122,
        129
      ],
      "successor_components": [
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 131,
      "size": 1,
      "prs": [
        127
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        128
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 132,
      "size": 1,
      "prs": [
        128
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        118,
        133,
        135,
        148,
        149,
        150,
        181,
        188
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 133,
      "size": 1,
      "prs": [
        129
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        114,
        118,
        121,
        128,
        132,
        134,
        135
      ],
      "successor_components": [
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 134,
      "size": 1,
      "prs": [
        130
      ],
      "internal_edge_ids": [],
      "condensation_level": 10,
      "predecessor_components": [
        6,
        7,
        8,
        9,
        10,
        11,
        14,
        17,
        20,
        22,
        24,
        25,
        27,
        28,
        33,
        35,
        36,
        37,
        40,
        66,
        101,
        108,
        119,
        121
      ],
      "successor_components": [
        1,
        133,
        135,
        139,
        140,
        143,
        148,
        149,
        150,
        188,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 135,
      "size": 1,
      "prs": [
        131
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        108,
        121,
        128,
        129,
        132,
        134
      ],
      "successor_components": [
        133,
        139,
        140,
        142,
        149,
        186,
        193,
        200,
        204
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 136,
      "size": 1,
      "prs": [
        132
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        139,
        140,
        143,
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 137,
      "size": 1,
      "prs": [
        133
      ],
      "internal_edge_ids": [],
      "condensation_level": 10,
      "predecessor_components": [
        66,
        108,
        114,
        115,
        117,
        118,
        121,
        122,
        124
      ],
      "successor_components": [
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 138,
      "size": 1,
      "prs": [
        134
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        139,
        149
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 139,
      "size": 1,
      "prs": [
        135
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        128,
        134,
        135,
        136,
        138
      ],
      "successor_components": [
        140
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 140,
      "size": 1,
      "prs": [
        136
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        108,
        134,
        135,
        136,
        139
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 141,
      "size": 1,
      "prs": [
        137
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        101
      ],
      "successor_components": [
        142,
        143
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 142,
      "size": 1,
      "prs": [
        138
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        108,
        135,
        141
      ],
      "successor_components": [
        143
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 143,
      "size": 1,
      "prs": [
        139
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        128,
        134,
        136,
        141,
        142
      ],
      "successor_components": [
        144
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 144,
      "size": 1,
      "prs": [
        140
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        126,
        129,
        143
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 145,
      "size": 1,
      "prs": [
        141
      ],
      "internal_edge_ids": [],
      "condensation_level": 21,
      "predecessor_components": [
        40,
        95
      ],
      "successor_components": [
        190
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 146,
      "size": 1,
      "prs": [
        142
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        121
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 147,
      "size": 1,
      "prs": [
        143
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        121
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 148,
      "size": 1,
      "prs": [
        144
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        6,
        7,
        8,
        9,
        10,
        11,
        14,
        17,
        20,
        22,
        24,
        25,
        27,
        28,
        33,
        35,
        36,
        37,
        40,
        66,
        101,
        108,
        119,
        121,
        132,
        134
      ],
      "successor_components": [
        1,
        150,
        152,
        180,
        181,
        182,
        183,
        185,
        186,
        188,
        189,
        190,
        193,
        200,
        204,
        227,
        273,
        310,
        320,
        381,
        391,
        570
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 149,
      "size": 1,
      "prs": [
        145
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        101,
        108,
        114,
        117,
        121,
        124,
        128,
        129,
        130,
        132,
        133,
        134,
        135,
        136,
        137,
        138
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 150,
      "size": 1,
      "prs": [
        146
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        101,
        108,
        119,
        121,
        132,
        134,
        148,
        151,
        152
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 151,
      "size": 1,
      "prs": [
        147
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        101
      ],
      "successor_components": [
        150
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 152,
      "size": 1,
      "prs": [
        148
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        148
      ],
      "successor_components": [
        150,
        181
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 153,
      "size": 1,
      "prs": [
        149
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        188
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 154,
      "size": 1,
      "prs": [
        150
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        101
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 155,
      "size": 1,
      "prs": [
        151
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 156,
      "size": 1,
      "prs": [
        152
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 157,
      "size": 1,
      "prs": [
        153
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        188
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 158,
      "size": 1,
      "prs": [
        154
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        180,
        183,
        185,
        186,
        193,
        200,
        204
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 159,
      "size": 1,
      "prs": [
        155
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 160,
      "size": 1,
      "prs": [
        156
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 161,
      "size": 1,
      "prs": [
        157
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 162,
      "size": 1,
      "prs": [
        158
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        181,
        188
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 163,
      "size": 1,
      "prs": [
        159
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 164,
      "size": 1,
      "prs": [
        160
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 165,
      "size": 1,
      "prs": [
        161
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        166,
        167,
        169,
        171,
        174
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 166,
      "size": 1,
      "prs": [
        162
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        165
      ],
      "successor_components": [
        169,
        182,
        185,
        186,
        188,
        193,
        200,
        204
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 167,
      "size": 1,
      "prs": [
        163
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        165
      ],
      "successor_components": [
        169,
        170,
        174,
        175,
        176,
        188
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 168,
      "size": 1,
      "prs": [
        164
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 169,
      "size": 1,
      "prs": [
        165
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        165,
        166,
        167
      ],
      "successor_components": [
        179
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 170,
      "size": 1,
      "prs": [
        166
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        167
      ],
      "successor_components": [
        180,
        182,
        183,
        185,
        186,
        188,
        189,
        190,
        193,
        200,
        204,
        206
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 171,
      "size": 1,
      "prs": [
        167
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        165
      ],
      "successor_components": [
        182
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 172,
      "size": 1,
      "prs": [
        168
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        121
      ],
      "successor_components": [
        4,
        174,
        175,
        180,
        182,
        183,
        184,
        185,
        186,
        188,
        189,
        190,
        191,
        193,
        195,
        196,
        197,
        198,
        199,
        200,
        202,
        203,
        204,
        206,
        209,
        215,
        225,
        233,
        243,
        273,
        282,
        291,
        299,
        310,
        322
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 173,
      "size": 1,
      "prs": [
        169
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        175
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 174,
      "size": 1,
      "prs": [
        170
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        165,
        167,
        172
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 175,
      "size": 1,
      "prs": [
        171
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        167,
        172,
        173
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 176,
      "size": 1,
      "prs": [
        172
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        167
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 177,
      "size": 1,
      "prs": [
        173
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 178,
      "size": 1,
      "prs": [
        174
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 179,
      "size": 1,
      "prs": [
        175
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        61,
        169
      ],
      "successor_components": [
        180,
        183,
        184,
        185,
        186,
        190,
        193,
        200,
        204
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 180,
      "size": 1,
      "prs": [
        176
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        148,
        158,
        170,
        172,
        179
      ],
      "successor_components": [
        182,
        183
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 181,
      "size": 1,
      "prs": [
        177
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        27,
        101,
        121,
        132,
        148,
        152,
        162
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 182,
      "size": 1,
      "prs": [
        178
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        148,
        166,
        170,
        171,
        172,
        180
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 183,
      "size": 1,
      "prs": [
        179
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        148,
        158,
        170,
        172,
        179,
        180
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 184,
      "size": 1,
      "prs": [
        180
      ],
      "internal_edge_ids": [],
      "condensation_level": 23,
      "predecessor_components": [
        172,
        179,
        185,
        190
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 185,
      "size": 1,
      "prs": [
        181
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        148,
        158,
        166,
        170,
        172,
        179
      ],
      "successor_components": [
        184,
        189,
        190,
        191
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 186,
      "size": 1,
      "prs": [
        182
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        135,
        148,
        158,
        166,
        170,
        172,
        179
      ],
      "successor_components": [
        189,
        191,
        195
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 187,
      "size": 1,
      "prs": [
        183
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        189,
        243
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 188,
      "size": 1,
      "prs": [
        184
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        14,
        22,
        24,
        27,
        28,
        36,
        38,
        40,
        101,
        108,
        119,
        121,
        128,
        132,
        134,
        148,
        153,
        157,
        162,
        166,
        167,
        170,
        172
      ],
      "successor_components": [
        191,
        195,
        197,
        198,
        202,
        203,
        206,
        208,
        210,
        212,
        226,
        227,
        230,
        243,
        299,
        322
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 189,
      "size": 1,
      "prs": [
        185
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        148,
        170,
        172,
        185,
        186,
        187
      ],
      "successor_components": [
        0,
        191,
        195,
        197,
        202,
        203,
        208,
        209,
        210,
        211,
        214,
        216,
        219,
        230,
        391
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 190,
      "size": 1,
      "prs": [
        186
      ],
      "internal_edge_ids": [],
      "condensation_level": 22,
      "predecessor_components": [
        145,
        148,
        170,
        172,
        179,
        185
      ],
      "successor_components": [
        184,
        191,
        195,
        197,
        198,
        208,
        210,
        219,
        234,
        236,
        243,
        261
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 191,
      "size": 1,
      "prs": [
        187
      ],
      "internal_edge_ids": [],
      "condensation_level": 23,
      "predecessor_components": [
        172,
        185,
        186,
        188,
        189,
        190
      ],
      "successor_components": [
        201,
        202,
        208
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 192,
      "size": 1,
      "prs": [
        188
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 193,
      "size": 1,
      "prs": [
        189
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        135,
        148,
        158,
        166,
        170,
        172,
        179
      ],
      "successor_components": [
        198,
        202,
        203,
        204,
        206
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 194,
      "size": 1,
      "prs": [
        190
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 195,
      "size": 1,
      "prs": [
        191
      ],
      "internal_edge_ids": [],
      "condensation_level": 23,
      "predecessor_components": [
        172,
        186,
        188,
        189,
        190
      ],
      "successor_components": [
        197,
        198,
        206
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 196,
      "size": 1,
      "prs": [
        192
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        172
      ],
      "successor_components": [
        197
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 197,
      "size": 1,
      "prs": [
        193
      ],
      "internal_edge_ids": [],
      "condensation_level": 24,
      "predecessor_components": [
        172,
        188,
        189,
        190,
        195,
        196
      ],
      "successor_components": [
        0,
        198,
        201,
        202,
        206,
        209,
        214,
        216,
        219,
        225,
        226,
        227,
        241,
        243,
        246,
        248,
        253,
        254,
        273,
        274,
        282,
        299,
        310,
        320
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 198,
      "size": 1,
      "prs": [
        194
      ],
      "internal_edge_ids": [],
      "condensation_level": 25,
      "predecessor_components": [
        172,
        188,
        190,
        193,
        195,
        197
      ],
      "successor_components": [
        206,
        210,
        227,
        233,
        299,
        341,
        343
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 199,
      "size": 1,
      "prs": [
        195
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        172
      ],
      "successor_components": [
        229
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 200,
      "size": 1,
      "prs": [
        196
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        135,
        148,
        158,
        166,
        170,
        172,
        179
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 201,
      "size": 1,
      "prs": [
        197
      ],
      "internal_edge_ids": [],
      "condensation_level": 25,
      "predecessor_components": [
        191,
        197
      ],
      "successor_components": [
        0,
        209,
        210,
        211,
        214,
        216,
        219,
        225,
        230,
        241,
        243,
        246,
        248,
        265,
        277,
        498
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 202,
      "size": 1,
      "prs": [
        198
      ],
      "internal_edge_ids": [],
      "condensation_level": 25,
      "predecessor_components": [
        172,
        188,
        189,
        191,
        193,
        197,
        203
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 203,
      "size": 1,
      "prs": [
        199
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        172,
        188,
        189,
        193,
        204
      ],
      "successor_components": [
        202,
        210
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 204,
      "size": 1,
      "prs": [
        200
      ],
      "internal_edge_ids": [],
      "condensation_level": 13,
      "predecessor_components": [
        135,
        148,
        158,
        166,
        170,
        172,
        179,
        193
      ],
      "successor_components": [
        0,
        4,
        203,
        206,
        208,
        209,
        210,
        211,
        212,
        214,
        215,
        216,
        217,
        219,
        221,
        222,
        223,
        225,
        227,
        230,
        233,
        241,
        243,
        246,
        248,
        259,
        273,
        282,
        291,
        299,
        310,
        320,
        322,
        341,
        498
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 205,
      "size": 1,
      "prs": [
        201
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 206,
      "size": 1,
      "prs": [
        202
      ],
      "internal_edge_ids": [],
      "condensation_level": 26,
      "predecessor_components": [
        170,
        172,
        188,
        193,
        195,
        197,
        198,
        204
      ],
      "successor_components": [
        0,
        209,
        210,
        211,
        233,
        299
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 207,
      "size": 1,
      "prs": [
        203
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 208,
      "size": 1,
      "prs": [
        204
      ],
      "internal_edge_ids": [],
      "condensation_level": 24,
      "predecessor_components": [
        27,
        188,
        189,
        190,
        191,
        204
      ],
      "successor_components": [
        209,
        211,
        219
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 209,
      "size": 1,
      "prs": [
        205
      ],
      "internal_edge_ids": [],
      "condensation_level": 27,
      "predecessor_components": [
        172,
        189,
        197,
        201,
        204,
        206,
        208
      ],
      "successor_components": [
        211,
        221,
        225,
        230,
        238,
        243,
        259
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 210,
      "size": 1,
      "prs": [
        206
      ],
      "internal_edge_ids": [],
      "condensation_level": 27,
      "predecessor_components": [
        188,
        189,
        190,
        198,
        201,
        203,
        204,
        206
      ],
      "successor_components": [
        230,
        243
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 211,
      "size": 1,
      "prs": [
        207
      ],
      "internal_edge_ids": [],
      "condensation_level": 28,
      "predecessor_components": [
        189,
        201,
        204,
        206,
        208,
        209
      ],
      "successor_components": [
        0,
        219,
        230,
        241,
        243,
        246,
        248,
        257,
        282,
        310,
        320
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 212,
      "size": 1,
      "prs": [
        208
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        188,
        204
      ],
      "successor_components": [
        216,
        226,
        243,
        259
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 213,
      "size": 1,
      "prs": [
        209
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        0
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 214,
      "size": 1,
      "prs": [
        211
      ],
      "internal_edge_ids": [],
      "condensation_level": 26,
      "predecessor_components": [
        189,
        197,
        201,
        204
      ],
      "successor_components": [
        0,
        216,
        219,
        223,
        282,
        310,
        320
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 215,
      "size": 1,
      "prs": [
        212
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        172,
        204
      ],
      "successor_components": [
        216
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 216,
      "size": 1,
      "prs": [
        213
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        189,
        197,
        201,
        204,
        212,
        214,
        215
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 217,
      "size": 1,
      "prs": [
        214
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        204
      ],
      "successor_components": [
        222
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 218,
      "size": 1,
      "prs": [
        215
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 219,
      "size": 1,
      "prs": [
        217
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        189,
        190,
        197,
        201,
        204,
        208,
        211,
        214
      ],
      "successor_components": [
        223
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 220,
      "size": 1,
      "prs": [
        218
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 221,
      "size": 1,
      "prs": [
        219
      ],
      "internal_edge_ids": [],
      "condensation_level": 28,
      "predecessor_components": [
        204,
        209
      ],
      "successor_components": [
        0,
        226,
        232,
        243,
        259
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 222,
      "size": 1,
      "prs": [
        220
      ],
      "internal_edge_ids": [],
      "condensation_level": 15,
      "predecessor_components": [
        204,
        217
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 223,
      "size": 1,
      "prs": [
        221
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        204,
        214,
        219
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 224,
      "size": 1,
      "prs": [
        222
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 225,
      "size": 1,
      "prs": [
        223
      ],
      "internal_edge_ids": [],
      "condensation_level": 28,
      "predecessor_components": [
        172,
        197,
        201,
        204,
        209
      ],
      "successor_components": [
        242
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 226,
      "size": 1,
      "prs": [
        224
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        188,
        197,
        212,
        221
      ],
      "successor_components": [
        0,
        243
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 227,
      "size": 1,
      "prs": [
        225
      ],
      "internal_edge_ids": [],
      "condensation_level": 26,
      "predecessor_components": [
        121,
        148,
        188,
        197,
        198,
        204
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 228,
      "size": 1,
      "prs": [
        226
      ],
      "internal_edge_ids": [],
      "condensation_level": 11,
      "predecessor_components": [
        44,
        45,
        47,
        52,
        53
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 229,
      "size": 1,
      "prs": [
        228
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        199
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 230,
      "size": 1,
      "prs": [
        229
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        188,
        189,
        201,
        204,
        209,
        210,
        211
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 231,
      "size": 1,
      "prs": [
        231
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 232,
      "size": 1,
      "prs": [
        232
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        221
      ],
      "successor_components": [
        0,
        234
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 233,
      "size": 1,
      "prs": [
        233
      ],
      "internal_edge_ids": [],
      "condensation_level": 27,
      "predecessor_components": [
        172,
        198,
        204,
        206
      ],
      "successor_components": [
        243,
        247,
        299,
        305,
        306,
        322
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 234,
      "size": 1,
      "prs": [
        235
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        190,
        232
      ],
      "successor_components": [
        244,
        250
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 235,
      "size": 1,
      "prs": [
        236
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 236,
      "size": 1,
      "prs": [
        238
      ],
      "internal_edge_ids": [],
      "condensation_level": 23,
      "predecessor_components": [
        190
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 237,
      "size": 1,
      "prs": [
        239
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 238,
      "size": 1,
      "prs": [
        241
      ],
      "internal_edge_ids": [],
      "condensation_level": 28,
      "predecessor_components": [
        209
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 239,
      "size": 1,
      "prs": [
        242
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 240,
      "size": 1,
      "prs": [
        243
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0
      ],
      "successor_components": [
        244
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 241,
      "size": 1,
      "prs": [
        244
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        197,
        201,
        204,
        211
      ],
      "successor_components": [
        4,
        244,
        245,
        246,
        247,
        248,
        251,
        255,
        257,
        276,
        277,
        311
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 242,
      "size": 1,
      "prs": [
        245
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        225
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 243,
      "size": 1,
      "prs": [
        246
      ],
      "internal_edge_ids": [],
      "condensation_level": 30,
      "predecessor_components": [
        172,
        187,
        188,
        190,
        197,
        201,
        204,
        209,
        210,
        211,
        212,
        221,
        226,
        233
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 244,
      "size": 1,
      "prs": [
        247
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        0,
        234,
        240,
        241
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 245,
      "size": 1,
      "prs": [
        248
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        241
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 246,
      "size": 1,
      "prs": [
        249
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        0,
        197,
        201,
        204,
        211,
        241
      ],
      "successor_components": [
        248,
        249,
        250,
        251,
        254,
        255,
        256,
        264,
        269,
        274,
        305,
        306,
        307,
        376
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 247,
      "size": 1,
      "prs": [
        250
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        0,
        233,
        241
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 248,
      "size": 1,
      "prs": [
        251
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        0,
        197,
        201,
        204,
        211,
        241,
        246
      ],
      "successor_components": [
        250,
        257,
        265,
        274
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 249,
      "size": 1,
      "prs": [
        252
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        246
      ],
      "successor_components": [
        250
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 250,
      "size": 1,
      "prs": [
        253
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        234,
        246,
        248,
        249
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 251,
      "size": 1,
      "prs": [
        254
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        241,
        246
      ],
      "successor_components": [
        252,
        254,
        255,
        265,
        274
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 252,
      "size": 1,
      "prs": [
        255
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        251
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 253,
      "size": 1,
      "prs": [
        256
      ],
      "internal_edge_ids": [],
      "condensation_level": 25,
      "predecessor_components": [
        197
      ],
      "successor_components": [
        271,
        299,
        305,
        306,
        343
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 254,
      "size": 1,
      "prs": [
        257
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        0,
        197,
        246,
        251
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 255,
      "size": 1,
      "prs": [
        258
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        241,
        246,
        251
      ],
      "successor_components": [
        274
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 256,
      "size": 1,
      "prs": [
        259
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        246
      ],
      "successor_components": [
        258,
        260,
        262,
        263,
        264,
        266,
        267,
        270,
        274
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 257,
      "size": 1,
      "prs": [
        260
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        211,
        241,
        248
      ],
      "successor_components": [
        274
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 258,
      "size": 1,
      "prs": [
        261
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        256,
        259,
        260
      ],
      "successor_components": [
        262,
        264,
        269
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 259,
      "size": 1,
      "prs": [
        262
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        204,
        209,
        212,
        221
      ],
      "successor_components": [
        258,
        265
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 260,
      "size": 1,
      "prs": [
        263
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        0,
        256
      ],
      "successor_components": [
        258,
        262,
        264,
        269
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 261,
      "size": 1,
      "prs": [
        264
      ],
      "internal_edge_ids": [],
      "condensation_level": 23,
      "predecessor_components": [
        190
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 262,
      "size": 1,
      "prs": [
        265
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        256,
        258,
        260
      ],
      "successor_components": [
        264,
        265,
        267
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 263,
      "size": 1,
      "prs": [
        266
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        256
      ],
      "successor_components": [
        267,
        269,
        274,
        275,
        347,
        365,
        376,
        410,
        427
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 264,
      "size": 1,
      "prs": [
        267
      ],
      "internal_edge_ids": [],
      "condensation_level": 37,
      "predecessor_components": [
        246,
        256,
        258,
        260,
        262
      ],
      "successor_components": [
        267
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 265,
      "size": 1,
      "prs": [
        268
      ],
      "internal_edge_ids": [],
      "condensation_level": 37,
      "predecessor_components": [
        0,
        201,
        248,
        251,
        259,
        262
      ],
      "successor_components": [
        4,
        269,
        270,
        306
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 266,
      "size": 1,
      "prs": [
        269
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        256
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 267,
      "size": 1,
      "prs": [
        270
      ],
      "internal_edge_ids": [],
      "condensation_level": 38,
      "predecessor_components": [
        256,
        262,
        263,
        264
      ],
      "successor_components": [
        270,
        277
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 268,
      "size": 1,
      "prs": [
        271
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        277
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 269,
      "size": 1,
      "prs": [
        272
      ],
      "internal_edge_ids": [],
      "condensation_level": 38,
      "predecessor_components": [
        246,
        258,
        260,
        263,
        265
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 270,
      "size": 1,
      "prs": [
        273
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        256,
        265,
        267
      ],
      "successor_components": [
        306
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 271,
      "size": 1,
      "prs": [
        274
      ],
      "internal_edge_ids": [],
      "condensation_level": 26,
      "predecessor_components": [
        6,
        253
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 272,
      "size": 1,
      "prs": [
        275
      ],
      "internal_edge_ids": [],
      "condensation_level": 48,
      "predecessor_components": [
        1,
        378,
        429,
        433,
        438,
        544
      ],
      "successor_components": [
        297,
        300,
        302,
        303,
        541,
        553,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 273,
      "size": 1,
      "prs": [
        276
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        148,
        172,
        197,
        204
      ],
      "successor_components": [
        276,
        277,
        279,
        283,
        386
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 274,
      "size": 1,
      "prs": [
        277
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        0,
        197,
        246,
        248,
        251,
        255,
        256,
        257,
        263
      ],
      "successor_components": [
        275
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 275,
      "size": 1,
      "prs": [
        278
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        263,
        274
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 276,
      "size": 1,
      "prs": [
        279
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        241,
        273
      ],
      "successor_components": [
        277,
        367,
        386,
        511
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 277,
      "size": 1,
      "prs": [
        280
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        0,
        201,
        241,
        267,
        268,
        273,
        276
      ],
      "successor_components": [
        278,
        292,
        308,
        309
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 278,
      "size": 1,
      "prs": [
        281
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        277
      ],
      "successor_components": [
        306
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 279,
      "size": 1,
      "prs": [
        282
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        273
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 280,
      "size": 1,
      "prs": [
        283
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        281
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 281,
      "size": 1,
      "prs": [
        284
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        280
      ],
      "successor_components": [
        283
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 282,
      "size": 1,
      "prs": [
        285
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        172,
        197,
        204,
        211,
        214
      ],
      "successor_components": [
        4,
        286,
        292
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 283,
      "size": 1,
      "prs": [
        286
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        273,
        281
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 284,
      "size": 1,
      "prs": [
        288
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        344
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 285,
      "size": 1,
      "prs": [
        290
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        286,
        287,
        288,
        292
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 286,
      "size": 1,
      "prs": [
        291
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        4,
        282,
        285
      ],
      "successor_components": [
        288,
        292
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 287,
      "size": 1,
      "prs": [
        292
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        4,
        285
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 288,
      "size": 1,
      "prs": [
        293
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        4,
        285,
        286
      ],
      "successor_components": [
        298
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 289,
      "size": 1,
      "prs": [
        294
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        296,
        297
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 290,
      "size": 1,
      "prs": [
        295
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        292,
        295
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 291,
      "size": 1,
      "prs": [
        296
      ],
      "internal_edge_ids": [],
      "condensation_level": 14,
      "predecessor_components": [
        172,
        204
      ],
      "successor_components": [
        295,
        300
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 292,
      "size": 1,
      "prs": [
        297
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        4,
        277,
        282,
        285,
        286,
        290
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 293,
      "size": 1,
      "prs": [
        298
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 294,
      "size": 1,
      "prs": [
        299
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        295,
        296,
        297
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 295,
      "size": 1,
      "prs": [
        300
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        4,
        290,
        291,
        294
      ],
      "successor_components": [
        297,
        298,
        300
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 296,
      "size": 1,
      "prs": [
        301
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        289,
        294
      ],
      "successor_components": [
        297
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 297,
      "size": 1,
      "prs": [
        302
      ],
      "internal_edge_ids": [],
      "condensation_level": 50,
      "predecessor_components": [
        4,
        272,
        289,
        294,
        295,
        296,
        300,
        301,
        310,
        315,
        317,
        318,
        320
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 298,
      "size": 1,
      "prs": [
        303
      ],
      "internal_edge_ids": [],
      "condensation_level": 41,
      "predecessor_components": [
        288,
        295
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 299,
      "size": 1,
      "prs": [
        304
      ],
      "internal_edge_ids": [],
      "condensation_level": 28,
      "predecessor_components": [
        172,
        188,
        197,
        198,
        204,
        206,
        233,
        253
      ],
      "successor_components": [
        304
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 300,
      "size": 1,
      "prs": [
        305
      ],
      "internal_edge_ids": [],
      "condensation_level": 49,
      "predecessor_components": [
        272,
        291,
        295
      ],
      "successor_components": [
        297,
        302,
        303
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 301,
      "size": 1,
      "prs": [
        306
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        297,
        302,
        303
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 302,
      "size": 1,
      "prs": [
        307
      ],
      "internal_edge_ids": [],
      "condensation_level": 50,
      "predecessor_components": [
        272,
        300,
        301
      ],
      "successor_components": [
        303
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 303,
      "size": 1,
      "prs": [
        308
      ],
      "internal_edge_ids": [],
      "condensation_level": 51,
      "predecessor_components": [
        272,
        300,
        301,
        302
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 304,
      "size": 1,
      "prs": [
        309
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        299
      ],
      "successor_components": [
        305,
        306
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 305,
      "size": 1,
      "prs": [
        310
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        233,
        246,
        253,
        304
      ],
      "successor_components": [
        306,
        307,
        308,
        309,
        341
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 306,
      "size": 1,
      "prs": [
        311
      ],
      "internal_edge_ids": [],
      "condensation_level": 41,
      "predecessor_components": [
        233,
        246,
        253,
        265,
        270,
        278,
        304,
        305
      ],
      "successor_components": [
        308,
        309
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 307,
      "size": 1,
      "prs": [
        312
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        246,
        305,
        313
      ],
      "successor_components": [
        308,
        309
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 308,
      "size": 1,
      "prs": [
        313
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        277,
        305,
        306,
        307
      ],
      "successor_components": [
        309
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 309,
      "size": 1,
      "prs": [
        314
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        277,
        305,
        306,
        307,
        308
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 310,
      "size": 1,
      "prs": [
        315
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        148,
        172,
        197,
        204,
        211,
        214
      ],
      "successor_components": [
        297,
        311,
        315,
        316,
        318,
        343,
        347,
        365,
        368,
        376,
        378,
        387,
        391,
        392,
        395,
        427
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 311,
      "size": 1,
      "prs": [
        316
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        4,
        241,
        310
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 312,
      "size": 1,
      "prs": [
        317
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        314
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 313,
      "size": 1,
      "prs": [
        318
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        307,
        315,
        324,
        343,
        344,
        349,
        354,
        356,
        361,
        363,
        364,
        372,
        376,
        378,
        387,
        392,
        395,
        400,
        410
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 314,
      "size": 1,
      "prs": [
        319
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        312
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 315,
      "size": 1,
      "prs": [
        320
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        310,
        313
      ],
      "successor_components": [
        297,
        316
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 316,
      "size": 1,
      "prs": [
        321
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        310,
        315
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 317,
      "size": 1,
      "prs": [
        322
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        297
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 318,
      "size": 1,
      "prs": [
        323
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        310
      ],
      "successor_components": [
        297
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 319,
      "size": 1,
      "prs": [
        324
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 320,
      "size": 1,
      "prs": [
        325
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        148,
        197,
        204,
        211,
        214
      ],
      "successor_components": [
        297,
        335,
        341,
        343,
        347,
        365,
        368
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 321,
      "size": 1,
      "prs": [
        326
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 322,
      "size": 1,
      "prs": [
        327
      ],
      "internal_edge_ids": [],
      "condensation_level": 28,
      "predecessor_components": [
        172,
        188,
        204,
        233
      ],
      "successor_components": [
        325,
        326,
        335
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 323,
      "size": 1,
      "prs": [
        328
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        360
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 324,
      "size": 1,
      "prs": [
        329
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        313
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 325,
      "size": 1,
      "prs": [
        330
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        322
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 326,
      "size": 1,
      "prs": [
        331
      ],
      "internal_edge_ids": [],
      "condensation_level": 29,
      "predecessor_components": [
        322
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 327,
      "size": 1,
      "prs": [
        332
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 328,
      "size": 1,
      "prs": [
        333
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 329,
      "size": 1,
      "prs": [
        334
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 330,
      "size": 1,
      "prs": [
        335
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 331,
      "size": 1,
      "prs": [
        336
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 332,
      "size": 1,
      "prs": [
        337
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 333,
      "size": 1,
      "prs": [
        338
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 334,
      "size": 1,
      "prs": [
        339
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 335,
      "size": 1,
      "prs": [
        340
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        320,
        322
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 336,
      "size": 1,
      "prs": [
        341
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 337,
      "size": 1,
      "prs": [
        342
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 338,
      "size": 1,
      "prs": [
        343
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 339,
      "size": 1,
      "prs": [
        344
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 340,
      "size": 1,
      "prs": [
        345
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 341,
      "size": 1,
      "prs": [
        346
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        198,
        204,
        305,
        320
      ],
      "successor_components": [
        343,
        347,
        362,
        368
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 342,
      "size": 1,
      "prs": [
        347
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 343,
      "size": 1,
      "prs": [
        348
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        198,
        253,
        310,
        313,
        320,
        341
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 344,
      "size": 1,
      "prs": [
        349
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        284,
        313
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 345,
      "size": 1,
      "prs": [
        350
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        360
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 346,
      "size": 1,
      "prs": [
        351
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 347,
      "size": 1,
      "prs": [
        352
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        263,
        310,
        320,
        341
      ],
      "successor_components": [
        358,
        360,
        365,
        368,
        370,
        385
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 348,
      "size": 1,
      "prs": [
        353
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 349,
      "size": 1,
      "prs": [
        354
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        313
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 350,
      "size": 1,
      "prs": [
        355
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 351,
      "size": 1,
      "prs": [
        356
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 352,
      "size": 1,
      "prs": [
        357
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 353,
      "size": 1,
      "prs": [
        358
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        443
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 354,
      "size": 1,
      "prs": [
        359
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        313
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 355,
      "size": 1,
      "prs": [
        360
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 356,
      "size": 1,
      "prs": [
        361
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        313
      ],
      "successor_components": [
        535,
        570
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 357,
      "size": 1,
      "prs": [
        362
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 358,
      "size": 1,
      "prs": [
        363
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        347
      ],
      "successor_components": [
        373,
        390
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 359,
      "size": 1,
      "prs": [
        364
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        361,
        362,
        363,
        364
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 360,
      "size": 1,
      "prs": [
        365
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        323,
        345,
        347
      ],
      "successor_components": [
        391
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 361,
      "size": 1,
      "prs": [
        366
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        313,
        359
      ],
      "successor_components": [
        363,
        364
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 362,
      "size": 1,
      "prs": [
        367
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        341,
        359
      ],
      "successor_components": [
        443
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 363,
      "size": 1,
      "prs": [
        368
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        313,
        359,
        361
      ],
      "successor_components": [
        3
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 364,
      "size": 1,
      "prs": [
        369
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        313,
        359,
        361
      ],
      "successor_components": [
        367
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 365,
      "size": 1,
      "prs": [
        370
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        0,
        263,
        310,
        320,
        347
      ],
      "successor_components": [
        1,
        373,
        389,
        418
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 366,
      "size": 1,
      "prs": [
        371
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 367,
      "size": 1,
      "prs": [
        372
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        276,
        364
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 368,
      "size": 1,
      "prs": [
        373
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        0,
        310,
        320,
        341,
        347
      ],
      "successor_components": [
        370
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 369,
      "size": 1,
      "prs": [
        374
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 370,
      "size": 1,
      "prs": [
        375
      ],
      "internal_edge_ids": [],
      "condensation_level": 37,
      "predecessor_components": [
        0,
        347,
        368
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 371,
      "size": 1,
      "prs": [
        377
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        1,
        375,
        389,
        390,
        391,
        422
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 372,
      "size": 1,
      "prs": [
        378
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        313
      ],
      "successor_components": [
        391
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 373,
      "size": 1,
      "prs": [
        379
      ],
      "internal_edge_ids": [],
      "condensation_level": 37,
      "predecessor_components": [
        358,
        365
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 374,
      "size": 1,
      "prs": [
        380
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 375,
      "size": 1,
      "prs": [
        381
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        371
      ],
      "successor_components": [
        391
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 376,
      "size": 1,
      "prs": [
        382
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        0,
        246,
        263,
        310,
        313
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 377,
      "size": 1,
      "prs": [
        383
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 378,
      "size": 1,
      "prs": [
        384
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        310,
        313
      ],
      "successor_components": [
        272,
        391
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 379,
      "size": 1,
      "prs": [
        385
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 380,
      "size": 1,
      "prs": [
        386
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        1,
        389,
        436,
        533,
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 381,
      "size": 1,
      "prs": [
        387
      ],
      "internal_edge_ids": [],
      "condensation_level": 12,
      "predecessor_components": [
        148,
        382
      ],
      "successor_components": [
        391
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 382,
      "size": 1,
      "prs": [
        389
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        1,
        381
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 383,
      "size": 1,
      "prs": [
        390
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        390,
        391,
        422
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 384,
      "size": 1,
      "prs": [
        391
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 385,
      "size": 1,
      "prs": [
        392
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        347
      ],
      "successor_components": [
        391
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 386,
      "size": 1,
      "prs": [
        393
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        273,
        276
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 387,
      "size": 1,
      "prs": [
        394
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        310,
        313
      ],
      "successor_components": [
        388
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 388,
      "size": 1,
      "prs": [
        395
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        387
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 389,
      "size": 1,
      "prs": [
        396
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        365,
        371,
        380,
        391,
        394
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 390,
      "size": 1,
      "prs": [
        397
      ],
      "internal_edge_ids": [],
      "condensation_level": 37,
      "predecessor_components": [
        358,
        371,
        383
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 391,
      "size": 1,
      "prs": [
        398
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        1,
        27,
        148,
        189,
        310,
        360,
        371,
        372,
        375,
        378,
        381,
        383,
        385
      ],
      "successor_components": [
        389
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 392,
      "size": 1,
      "prs": [
        399
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        310,
        313
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 393,
      "size": 1,
      "prs": [
        400
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 394,
      "size": 1,
      "prs": [
        401
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        389,
        396,
        422
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 395,
      "size": 1,
      "prs": [
        402
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        310,
        313
      ],
      "successor_components": [
        398,
        399
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 396,
      "size": 1,
      "prs": [
        403
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        394
      ],
      "successor_components": [
        398
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 397,
      "size": 1,
      "prs": [
        404
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        399
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 398,
      "size": 1,
      "prs": [
        405
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        395,
        396
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 399,
      "size": 1,
      "prs": [
        406
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        395,
        397
      ],
      "successor_components": [
        422
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 400,
      "size": 1,
      "prs": [
        407
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        313
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 401,
      "size": 1,
      "prs": [
        408
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 402,
      "size": 1,
      "prs": [
        409
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        406
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 403,
      "size": 1,
      "prs": [
        410
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 404,
      "size": 1,
      "prs": [
        411
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 405,
      "size": 1,
      "prs": [
        412
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 406,
      "size": 1,
      "prs": [
        413
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        402
      ],
      "successor_components": [
        422
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 407,
      "size": 1,
      "prs": [
        414
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 408,
      "size": 1,
      "prs": [
        415
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 409,
      "size": 1,
      "prs": [
        416
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 410,
      "size": 1,
      "prs": [
        417
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        263,
        313
      ],
      "successor_components": [
        455
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 411,
      "size": 1,
      "prs": [
        418
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 412,
      "size": 1,
      "prs": [
        419
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 413,
      "size": 1,
      "prs": [
        420
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 414,
      "size": 1,
      "prs": [
        421
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 415,
      "size": 1,
      "prs": [
        422
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 416,
      "size": 1,
      "prs": [
        423
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 417,
      "size": 1,
      "prs": [
        424
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 418,
      "size": 1,
      "prs": [
        425
      ],
      "internal_edge_ids": [],
      "condensation_level": 37,
      "predecessor_components": [
        365
      ],
      "successor_components": [
        1,
        554
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 419,
      "size": 1,
      "prs": [
        427
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 420,
      "size": 1,
      "prs": [
        428
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 421,
      "size": 1,
      "prs": [
        429
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 422,
      "size": 1,
      "prs": [
        430
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        371,
        383,
        394,
        399,
        406
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 423,
      "size": 1,
      "prs": [
        431
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 424,
      "size": 1,
      "prs": [
        432
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 425,
      "size": 1,
      "prs": [
        434
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        434
      ],
      "successor_components": [
        438,
        525
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 426,
      "size": 1,
      "prs": [
        435
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 427,
      "size": 1,
      "prs": [
        436
      ],
      "internal_edge_ids": [],
      "condensation_level": 35,
      "predecessor_components": [
        0,
        263,
        310
      ],
      "successor_components": [
        436,
        447
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 428,
      "size": 1,
      "prs": [
        437
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        1
      ],
      "successor_components": [
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 429,
      "size": 1,
      "prs": [
        438
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        272
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 430,
      "size": 1,
      "prs": [
        439
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 431,
      "size": 1,
      "prs": [
        440
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        432,
        445,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 432,
      "size": 1,
      "prs": [
        441
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        431
      ],
      "successor_components": [
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 433,
      "size": 1,
      "prs": [
        442
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        272,
        435,
        436,
        438,
        442,
        445,
        447,
        452,
        457,
        475,
        483,
        484,
        525,
        533,
        537,
        554
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 434,
      "size": 1,
      "prs": [
        443
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        425,
        435,
        436,
        452,
        457,
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 435,
      "size": 1,
      "prs": [
        444
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        433,
        434
      ],
      "successor_components": [
        436,
        533,
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 436,
      "size": 1,
      "prs": [
        445
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        0,
        380,
        427,
        433,
        434,
        435
      ],
      "successor_components": [
        438,
        452,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 437,
      "size": 1,
      "prs": [
        446
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 438,
      "size": 1,
      "prs": [
        447
      ],
      "internal_edge_ids": [],
      "condensation_level": 37,
      "predecessor_components": [
        425,
        433,
        436
      ],
      "successor_components": [
        272,
        444
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 439,
      "size": 1,
      "prs": [
        448
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        444,
        445,
        447,
        452,
        457,
        481,
        483,
        484,
        525
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 440,
      "size": 1,
      "prs": [
        449
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        484
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 441,
      "size": 1,
      "prs": [
        450
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        445,
        452,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 442,
      "size": 1,
      "prs": [
        451
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        1,
        433
      ],
      "successor_components": [
        444,
        445,
        447,
        483,
        484
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 443,
      "size": 1,
      "prs": [
        452
      ],
      "internal_edge_ids": [],
      "condensation_level": 36,
      "predecessor_components": [
        353,
        362
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 444,
      "size": 1,
      "prs": [
        453
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        438,
        439,
        442
      ],
      "successor_components": [
        447
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 445,
      "size": 1,
      "prs": [
        454
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        1,
        431,
        433,
        439,
        441,
        442
      ],
      "successor_components": [
        2,
        447
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 446,
      "size": 1,
      "prs": [
        455
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        447
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 447,
      "size": 1,
      "prs": [
        456
      ],
      "internal_edge_ids": [],
      "condensation_level": 41,
      "predecessor_components": [
        1,
        427,
        433,
        439,
        442,
        444,
        445,
        446
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 448,
      "size": 1,
      "prs": [
        457
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 449,
      "size": 1,
      "prs": [
        459
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 450,
      "size": 1,
      "prs": [
        461
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        452,
        457
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 451,
      "size": 1,
      "prs": [
        463
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        453,
        455,
        470,
        483,
        495,
        533,
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 452,
      "size": 1,
      "prs": [
        464
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        2,
        433,
        434,
        436,
        439,
        441,
        450
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 453,
      "size": 1,
      "prs": [
        465
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        2,
        451
      ],
      "successor_components": [
        455,
        475,
        476,
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 454,
      "size": 1,
      "prs": [
        466
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 455,
      "size": 1,
      "prs": [
        467
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        2,
        410,
        451,
        453
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 456,
      "size": 1,
      "prs": [
        468
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 457,
      "size": 1,
      "prs": [
        469
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        6,
        7,
        8,
        9,
        10,
        11,
        14,
        22,
        24,
        25,
        27,
        28,
        33,
        35,
        36,
        37,
        40,
        66,
        101,
        108,
        119,
        121,
        134,
        428,
        431,
        432,
        433,
        434,
        436,
        439,
        441,
        450
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 458,
      "size": 1,
      "prs": [
        470
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 459,
      "size": 1,
      "prs": [
        471
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        475,
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 460,
      "size": 1,
      "prs": [
        472
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        483,
        525
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 461,
      "size": 1,
      "prs": [
        474
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 462,
      "size": 1,
      "prs": [
        475
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 463,
      "size": 1,
      "prs": [
        476
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 464,
      "size": 1,
      "prs": [
        479
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 465,
      "size": 1,
      "prs": [
        480
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        3,
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 466,
      "size": 1,
      "prs": [
        481
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 467,
      "size": 1,
      "prs": [
        482
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 468,
      "size": 1,
      "prs": [
        483
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        3,
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 469,
      "size": 1,
      "prs": [
        484
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        3,
        481,
        483,
        484,
        486,
        493,
        508,
        516,
        520,
        533,
        536,
        537,
        542,
        553,
        554,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 470,
      "size": 1,
      "prs": [
        485
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        451
      ],
      "successor_components": [
        3,
        483,
        484
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 471,
      "size": 1,
      "prs": [
        486
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 472,
      "size": 1,
      "prs": [
        487
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 473,
      "size": 1,
      "prs": [
        488
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        515,
        550,
        551,
        555,
        558
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 474,
      "size": 1,
      "prs": [
        489
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 475,
      "size": 1,
      "prs": [
        490
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        3,
        433,
        453,
        459
      ],
      "successor_components": [
        483
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 476,
      "size": 1,
      "prs": [
        491
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        3,
        453,
        478
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 477,
      "size": 1,
      "prs": [
        492
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 478,
      "size": 1,
      "prs": [
        493
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        3,
        476,
        481,
        484,
        493,
        499,
        503,
        507,
        508,
        516,
        525,
        530,
        533,
        537,
        538,
        551,
        575
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 479,
      "size": 1,
      "prs": [
        494
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        481,
        484
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 480,
      "size": 1,
      "prs": [
        495
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        484,
        493
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 481,
      "size": 1,
      "prs": [
        496
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        439,
        469,
        478,
        479
      ],
      "successor_components": [
        3,
        508
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 482,
      "size": 1,
      "prs": [
        497
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 483,
      "size": 1,
      "prs": [
        498
      ],
      "internal_edge_ids": [],
      "condensation_level": 44,
      "predecessor_components": [
        2,
        3,
        433,
        434,
        439,
        442,
        451,
        453,
        458,
        459,
        460,
        463,
        465,
        468,
        469,
        470,
        475
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 484,
      "size": 1,
      "prs": [
        499
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        1,
        2,
        433,
        439,
        440,
        442,
        469,
        470,
        478,
        479,
        480
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 485,
      "size": 1,
      "prs": [
        500
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 486,
      "size": 1,
      "prs": [
        501
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        469
      ],
      "successor_components": [
        3,
        493
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 487,
      "size": 1,
      "prs": [
        502
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 488,
      "size": 1,
      "prs": [
        503
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        533,
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 489,
      "size": 1,
      "prs": [
        504
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 490,
      "size": 1,
      "prs": [
        505
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        3,
        508,
        554
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 491,
      "size": 1,
      "prs": [
        506
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 492,
      "size": 1,
      "prs": [
        507
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        3,
        499,
        502,
        508,
        516,
        553,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 493,
      "size": 1,
      "prs": [
        508
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        469,
        478,
        480,
        486
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 494,
      "size": 1,
      "prs": [
        509
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        513,
        566,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 495,
      "size": 1,
      "prs": [
        510
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        451
      ],
      "successor_components": [
        520,
        524,
        528,
        533,
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 496,
      "size": 1,
      "prs": [
        511
      ],
      "internal_edge_ids": [],
      "condensation_level": 18,
      "predecessor_components": [
        68
      ],
      "successor_components": [
        515,
        550,
        551,
        555,
        558
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 497,
      "size": 1,
      "prs": [
        512
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 498,
      "size": 1,
      "prs": [
        513
      ],
      "internal_edge_ids": [],
      "condensation_level": 31,
      "predecessor_components": [
        0,
        201,
        204
      ],
      "successor_components": [
        513,
        566
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 499,
      "size": 1,
      "prs": [
        514
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        478,
        492
      ],
      "successor_components": [
        508,
        516,
        553,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 500,
      "size": 1,
      "prs": [
        515
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 501,
      "size": 1,
      "prs": [
        516
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        513,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 502,
      "size": 1,
      "prs": [
        517
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        492
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 503,
      "size": 1,
      "prs": [
        518
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        478
      ],
      "successor_components": [
        508
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 504,
      "size": 1,
      "prs": [
        519
      ],
      "internal_edge_ids": [],
      "condensation_level": 18,
      "predecessor_components": [
        68
      ],
      "successor_components": [
        511,
        515,
        551,
        555,
        558
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 505,
      "size": 1,
      "prs": [
        520
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        516,
        593
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 506,
      "size": 1,
      "prs": [
        521
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 507,
      "size": 1,
      "prs": [
        522
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        478
      ],
      "successor_components": [
        516
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 508,
      "size": 1,
      "prs": [
        523
      ],
      "internal_edge_ids": [],
      "condensation_level": 39,
      "predecessor_components": [
        1,
        469,
        478,
        481,
        490,
        492,
        499,
        503
      ],
      "successor_components": [
        516,
        520
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 509,
      "size": 1,
      "prs": [
        524
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 510,
      "size": 1,
      "prs": [
        525
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 511,
      "size": 1,
      "prs": [
        526
      ],
      "internal_edge_ids": [],
      "condensation_level": 33,
      "predecessor_components": [
        68,
        276,
        504
      ],
      "successor_components": [
        515,
        551,
        555,
        558,
        590
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 512,
      "size": 1,
      "prs": [
        527
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        538
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 513,
      "size": 1,
      "prs": [
        528
      ],
      "internal_edge_ids": [],
      "condensation_level": 32,
      "predecessor_components": [
        494,
        498,
        501
      ],
      "successor_components": [
        566,
        570
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 514,
      "size": 1,
      "prs": [
        529
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        516
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 515,
      "size": 1,
      "prs": [
        530
      ],
      "internal_edge_ids": [],
      "condensation_level": 34,
      "predecessor_components": [
        68,
        473,
        496,
        504,
        511
      ],
      "successor_components": [
        551,
        555,
        558
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 516,
      "size": 1,
      "prs": [
        531
      ],
      "internal_edge_ids": [],
      "condensation_level": 40,
      "predecessor_components": [
        1,
        469,
        478,
        492,
        499,
        505,
        507,
        508,
        514
      ],
      "successor_components": [
        518,
        519,
        520,
        523,
        533,
        537,
        538,
        541,
        550,
        551,
        553,
        554,
        555,
        558,
        559,
        561,
        563,
        567,
        569,
        570,
        573,
        576,
        577,
        581,
        585,
        586,
        588,
        607
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 517,
      "size": 1,
      "prs": [
        532
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 518,
      "size": 1,
      "prs": [
        533
      ],
      "internal_edge_ids": [],
      "condensation_level": 41,
      "predecessor_components": [
        516
      ],
      "successor_components": [
        520,
        523,
        533
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 519,
      "size": 1,
      "prs": [
        534
      ],
      "internal_edge_ids": [],
      "condensation_level": 41,
      "predecessor_components": [
        516
      ],
      "successor_components": [
        521,
        523,
        533,
        536,
        537,
        542
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 520,
      "size": 1,
      "prs": [
        535
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        1,
        469,
        495,
        508,
        516,
        518
      ],
      "successor_components": [
        523,
        524,
        533,
        536,
        537,
        542,
        553,
        554,
        559,
        561,
        563,
        567,
        568,
        569,
        573,
        575,
        576,
        577,
        581,
        582,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 521,
      "size": 1,
      "prs": [
        536
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        519
      ],
      "successor_components": [
        523
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 522,
      "size": 1,
      "prs": [
        537
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 523,
      "size": 1,
      "prs": [
        538
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        516,
        518,
        519,
        520,
        521
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 524,
      "size": 1,
      "prs": [
        539
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        495,
        520
      ],
      "successor_components": [
        533
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 525,
      "size": 1,
      "prs": [
        540
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        425,
        433,
        439,
        460,
        478
      ],
      "successor_components": [
        533,
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 526,
      "size": 1,
      "prs": [
        541
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        536,
        537,
        541,
        542
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 527,
      "size": 1,
      "prs": [
        542
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        531,
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 528,
      "size": 1,
      "prs": [
        543
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        495
      ],
      "successor_components": [
        532,
        536,
        537,
        541,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        559,
        560,
        561,
        563,
        564,
        567,
        568,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588,
        597,
        598,
        601,
        603,
        609,
        612,
        617,
        618
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 529,
      "size": 1,
      "prs": [
        544
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        532
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 530,
      "size": 1,
      "prs": [
        545
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        478
      ],
      "successor_components": [
        537
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 531,
      "size": 1,
      "prs": [
        546
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        527
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 532,
      "size": 1,
      "prs": [
        547
      ],
      "internal_edge_ids": [],
      "condensation_level": 45,
      "predecessor_components": [
        528,
        529,
        533
      ],
      "successor_components": [
        536,
        537,
        541
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 533,
      "size": 1,
      "prs": [
        548
      ],
      "internal_edge_ids": [],
      "condensation_level": 44,
      "predecessor_components": [
        380,
        433,
        435,
        451,
        469,
        478,
        488,
        495,
        516,
        518,
        519,
        520,
        524,
        525
      ],
      "successor_components": [
        532,
        536,
        541,
        542
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 534,
      "size": 1,
      "prs": [
        549
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        541
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 535,
      "size": 1,
      "prs": [
        550
      ],
      "internal_edge_ids": [],
      "condensation_level": 2,
      "predecessor_components": [
        356
      ],
      "successor_components": [
        541,
        553,
        554,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 536,
      "size": 1,
      "prs": [
        551
      ],
      "internal_edge_ids": [],
      "condensation_level": 46,
      "predecessor_components": [
        469,
        519,
        520,
        526,
        528,
        532,
        533
      ],
      "successor_components": [
        542,
        547,
        549,
        553,
        554,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 537,
      "size": 1,
      "prs": [
        552
      ],
      "internal_edge_ids": [],
      "condensation_level": 46,
      "predecessor_components": [
        380,
        433,
        435,
        451,
        469,
        478,
        488,
        495,
        516,
        519,
        520,
        525,
        526,
        527,
        528,
        530,
        532
      ],
      "successor_components": [
        544,
        547,
        549,
        553,
        554,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 538,
      "size": 1,
      "prs": [
        553
      ],
      "internal_edge_ids": [],
      "condensation_level": 41,
      "predecessor_components": [
        478,
        512,
        516
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 539,
      "size": 1,
      "prs": [
        554
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        545
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 540,
      "size": 1,
      "prs": [
        555
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 541,
      "size": 1,
      "prs": [
        556
      ],
      "internal_edge_ids": [],
      "condensation_level": 49,
      "predecessor_components": [
        272,
        516,
        526,
        528,
        532,
        533,
        534,
        535
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 542,
      "size": 1,
      "prs": [
        557
      ],
      "internal_edge_ids": [],
      "condensation_level": 47,
      "predecessor_components": [
        469,
        519,
        520,
        526,
        533,
        536
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 543,
      "size": 1,
      "prs": [
        558
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        544,
        547,
        549,
        552,
        553,
        559,
        561,
        563,
        567,
        568,
        569,
        571,
        572,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 544,
      "size": 1,
      "prs": [
        559
      ],
      "internal_edge_ids": [],
      "condensation_level": 47,
      "predecessor_components": [
        528,
        537,
        543
      ],
      "successor_components": [
        272,
        547,
        549,
        552,
        553,
        554,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 545,
      "size": 1,
      "prs": [
        560
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        539
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 546,
      "size": 1,
      "prs": [
        561
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        528
      ],
      "successor_components": [
        547,
        549,
        552,
        553,
        554,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 547,
      "size": 1,
      "prs": [
        562
      ],
      "internal_edge_ids": [],
      "condensation_level": 48,
      "predecessor_components": [
        528,
        536,
        537,
        543,
        544,
        546
      ],
      "successor_components": [
        549,
        552,
        553,
        559,
        561,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 548,
      "size": 1,
      "prs": [
        563
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        554
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 549,
      "size": 1,
      "prs": [
        564
      ],
      "internal_edge_ids": [],
      "condensation_level": 49,
      "predecessor_components": [
        528,
        536,
        537,
        543,
        544,
        546,
        547
      ],
      "successor_components": [
        552,
        553,
        554,
        556,
        559,
        561,
        563,
        567,
        569,
        572,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 550,
      "size": 1,
      "prs": [
        565
      ],
      "internal_edge_ids": [],
      "condensation_level": 41,
      "predecessor_components": [
        473,
        496,
        516
      ],
      "successor_components": [
        551,
        555,
        558,
        566,
        570
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 551,
      "size": 1,
      "prs": [
        566
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        68,
        473,
        478,
        496,
        504,
        511,
        515,
        516,
        550
      ],
      "successor_components": [
        555,
        558
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 552,
      "size": 1,
      "prs": [
        567
      ],
      "internal_edge_ids": [],
      "condensation_level": 50,
      "predecessor_components": [
        528,
        543,
        544,
        546,
        547,
        549
      ],
      "successor_components": [
        553,
        554,
        559,
        560,
        561,
        563,
        564,
        567,
        568,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 553,
      "size": 1,
      "prs": [
        568
      ],
      "internal_edge_ids": [],
      "condensation_level": 51,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552
      ],
      "successor_components": [
        554,
        556,
        559,
        560,
        561,
        563,
        564,
        567,
        569,
        572,
        573,
        576,
        577,
        579,
        581,
        585,
        586,
        588,
        592,
        593,
        594,
        598,
        599,
        600,
        601,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 554,
      "size": 1,
      "prs": [
        569
      ],
      "internal_edge_ids": [],
      "condensation_level": 52,
      "predecessor_components": [
        418,
        433,
        469,
        490,
        516,
        520,
        528,
        535,
        536,
        537,
        544,
        546,
        548,
        549,
        552,
        553
      ],
      "successor_components": [
        556,
        559,
        560,
        561,
        563,
        564,
        567,
        569,
        572,
        573,
        576,
        577,
        581,
        585,
        586,
        588,
        592,
        593,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 555,
      "size": 1,
      "prs": [
        570
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        68,
        473,
        496,
        504,
        511,
        515,
        516,
        550,
        551
      ],
      "successor_components": [
        558
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 556,
      "size": 1,
      "prs": [
        571
      ],
      "internal_edge_ids": [],
      "condensation_level": 53,
      "predecessor_components": [
        528,
        549,
        553,
        554
      ],
      "successor_components": [
        559,
        560,
        561,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        573,
        576,
        577,
        581,
        585,
        586,
        588,
        592,
        593,
        594,
        598,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 557,
      "size": 1,
      "prs": [
        572
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        559,
        560,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 558,
      "size": 1,
      "prs": [
        573
      ],
      "internal_edge_ids": [],
      "condensation_level": 44,
      "predecessor_components": [
        68,
        473,
        496,
        504,
        511,
        515,
        516,
        550,
        551,
        555
      ],
      "successor_components": [
        590
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 559,
      "size": 1,
      "prs": [
        574
      ],
      "internal_edge_ids": [],
      "condensation_level": 54,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557
      ],
      "successor_components": [
        560,
        563,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 560,
      "size": 1,
      "prs": [
        575
      ],
      "internal_edge_ids": [],
      "condensation_level": 55,
      "predecessor_components": [
        528,
        552,
        553,
        554,
        556,
        557,
        559
      ],
      "successor_components": [
        561,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        573,
        576,
        577,
        581,
        585,
        586,
        588,
        592,
        593,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 561,
      "size": 1,
      "prs": [
        576
      ],
      "internal_edge_ids": [],
      "condensation_level": 56,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        560,
        562
      ],
      "successor_components": [
        563,
        564,
        567,
        568,
        569,
        572,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 562,
      "size": 1,
      "prs": [
        577
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        557
      ],
      "successor_components": [
        561,
        564,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 563,
      "size": 1,
      "prs": [
        578
      ],
      "internal_edge_ids": [],
      "condensation_level": 57,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561
      ],
      "successor_components": [
        564,
        567,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 564,
      "size": 1,
      "prs": [
        579
      ],
      "internal_edge_ids": [],
      "condensation_level": 58,
      "predecessor_components": [
        528,
        552,
        553,
        554,
        556,
        557,
        560,
        561,
        562,
        563
      ],
      "successor_components": [
        567,
        568,
        569,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 565,
      "size": 1,
      "prs": [
        580
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 566,
      "size": 1,
      "prs": [
        581
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        494,
        498,
        513,
        550
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 567,
      "size": 1,
      "prs": [
        582
      ],
      "internal_edge_ids": [],
      "condensation_level": 59,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564
      ],
      "successor_components": [
        568,
        569,
        571,
        572,
        573,
        576,
        577,
        581,
        585
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 568,
      "size": 1,
      "prs": [
        583
      ],
      "internal_edge_ids": [],
      "condensation_level": 60,
      "predecessor_components": [
        520,
        528,
        543,
        552,
        556,
        557,
        560,
        561,
        564,
        567
      ],
      "successor_components": [
        569,
        571,
        573,
        576,
        577,
        581,
        585,
        586,
        588,
        592,
        593,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 569,
      "size": 1,
      "prs": [
        584
      ],
      "internal_edge_ids": [],
      "condensation_level": 61,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        567,
        568
      ],
      "successor_components": [
        571,
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 570,
      "size": 1,
      "prs": [
        585
      ],
      "internal_edge_ids": [],
      "condensation_level": 42,
      "predecessor_components": [
        27,
        148,
        356,
        513,
        516,
        550
      ],
      "successor_components": [
        590
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 571,
      "size": 1,
      "prs": [
        586
      ],
      "internal_edge_ids": [],
      "condensation_level": 62,
      "predecessor_components": [
        543,
        556,
        557,
        560,
        567,
        568,
        569
      ],
      "successor_components": [
        573,
        576,
        577,
        581,
        585,
        586,
        588
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 572,
      "size": 1,
      "prs": [
        587
      ],
      "internal_edge_ids": [],
      "condensation_level": 60,
      "predecessor_components": [
        543,
        549,
        553,
        554,
        556,
        560,
        561,
        567
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 573,
      "size": 1,
      "prs": [
        588
      ],
      "internal_edge_ids": [],
      "condensation_level": 63,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571
      ],
      "successor_components": [
        576,
        577,
        579,
        581,
        585,
        586,
        588,
        590
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 574,
      "size": 1,
      "prs": [
        589
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 575,
      "size": 1,
      "prs": [
        590
      ],
      "internal_edge_ids": [],
      "condensation_level": 43,
      "predecessor_components": [
        478,
        520
      ],
      "successor_components": [
        582,
        597
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 576,
      "size": 1,
      "prs": [
        591
      ],
      "internal_edge_ids": [],
      "condensation_level": 64,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        573
      ],
      "successor_components": [
        577,
        578,
        579,
        581,
        585,
        586,
        588,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 577,
      "size": 1,
      "prs": [
        592
      ],
      "internal_edge_ids": [],
      "condensation_level": 65,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        573,
        576
      ],
      "successor_components": [
        578,
        581,
        583,
        585,
        586,
        588,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 578,
      "size": 1,
      "prs": [
        593
      ],
      "internal_edge_ids": [],
      "condensation_level": 67,
      "predecessor_components": [
        576,
        577,
        581,
        584
      ],
      "successor_components": [
        586,
        588,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 579,
      "size": 1,
      "prs": [
        594
      ],
      "internal_edge_ids": [],
      "condensation_level": 65,
      "predecessor_components": [
        553,
        573,
        576
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 580,
      "size": 1,
      "prs": [
        595
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        583
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 581,
      "size": 1,
      "prs": [
        596
      ],
      "internal_edge_ids": [],
      "condensation_level": 66,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        573,
        576,
        577
      ],
      "successor_components": [
        578,
        585,
        586,
        588,
        590,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 582,
      "size": 1,
      "prs": [
        597
      ],
      "internal_edge_ids": [],
      "condensation_level": 44,
      "predecessor_components": [
        520,
        575
      ],
      "successor_components": [
        597
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 583,
      "size": 1,
      "prs": [
        598
      ],
      "internal_edge_ids": [],
      "condensation_level": 66,
      "predecessor_components": [
        577,
        580
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 584,
      "size": 1,
      "prs": [
        599
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        578,
        586,
        588,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 585,
      "size": 1,
      "prs": [
        600
      ],
      "internal_edge_ids": [],
      "condensation_level": 67,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        573,
        576,
        577,
        581
      ],
      "successor_components": [
        586,
        588,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 586,
      "size": 1,
      "prs": [
        601
      ],
      "internal_edge_ids": [],
      "condensation_level": 68,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        568,
        569,
        571,
        573,
        576,
        577,
        578,
        581,
        584,
        585
      ],
      "successor_components": [
        588,
        592,
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 587,
      "size": 1,
      "prs": [
        602
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 588,
      "size": 1,
      "prs": [
        603
      ],
      "internal_edge_ids": [],
      "condensation_level": 69,
      "predecessor_components": [
        272,
        469,
        492,
        499,
        516,
        520,
        528,
        535,
        536,
        537,
        543,
        544,
        546,
        547,
        549,
        552,
        553,
        554,
        556,
        557,
        559,
        560,
        561,
        562,
        563,
        564,
        568,
        569,
        571,
        573,
        576,
        577,
        578,
        581,
        584,
        585,
        586
      ],
      "successor_components": [
        592,
        594
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 589,
      "size": 1,
      "prs": [
        604
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        592,
        594,
        596,
        598,
        599,
        600,
        601,
        602,
        603,
        604,
        607,
        608,
        609,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 590,
      "size": 1,
      "prs": [
        605
      ],
      "internal_edge_ids": [],
      "condensation_level": 67,
      "predecessor_components": [
        511,
        558,
        570,
        573,
        581
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 591,
      "size": 1,
      "prs": [
        606
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 592,
      "size": 1,
      "prs": [
        607
      ],
      "internal_edge_ids": [],
      "condensation_level": 70,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        588,
        589
      ],
      "successor_components": [
        594,
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 593,
      "size": 1,
      "prs": [
        608
      ],
      "internal_edge_ids": [],
      "condensation_level": 61,
      "predecessor_components": [
        505,
        553,
        554,
        556,
        560,
        568
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 594,
      "size": 1,
      "prs": [
        609
      ],
      "internal_edge_ids": [],
      "condensation_level": 71,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        588,
        589,
        592
      ],
      "successor_components": [
        599,
        600,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 595,
      "size": 1,
      "prs": [
        610
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        598,
        599,
        600,
        602,
        603
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 596,
      "size": 1,
      "prs": [
        611
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        589
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 597,
      "size": 1,
      "prs": [
        612
      ],
      "internal_edge_ids": [],
      "condensation_level": 45,
      "predecessor_components": [
        528,
        575,
        582
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 598,
      "size": 1,
      "prs": [
        613
      ],
      "internal_edge_ids": [],
      "condensation_level": 54,
      "predecessor_components": [
        528,
        553,
        556,
        589,
        595
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 599,
      "size": 1,
      "prs": [
        614
      ],
      "internal_edge_ids": [],
      "condensation_level": 72,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        589,
        592,
        594,
        595
      ],
      "successor_components": [
        600,
        601,
        602,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 600,
      "size": 1,
      "prs": [
        615
      ],
      "internal_edge_ids": [],
      "condensation_level": 73,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        589,
        592,
        594,
        595,
        599
      ],
      "successor_components": [
        601,
        602,
        604,
        607,
        608,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 601,
      "size": 1,
      "prs": [
        616
      ],
      "internal_edge_ids": [],
      "condensation_level": 74,
      "predecessor_components": [
        528,
        553,
        589,
        599,
        600
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 602,
      "size": 1,
      "prs": [
        617
      ],
      "internal_edge_ids": [],
      "condensation_level": 74,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        589,
        592,
        594,
        595,
        599,
        600
      ],
      "successor_components": [
        604,
        607,
        608,
        609,
        610,
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 603,
      "size": 1,
      "prs": [
        618
      ],
      "internal_edge_ids": [],
      "condensation_level": 3,
      "predecessor_components": [
        528,
        589,
        595
      ],
      "successor_components": [
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 604,
      "size": 1,
      "prs": [
        619
      ],
      "internal_edge_ids": [],
      "condensation_level": 75,
      "predecessor_components": [
        589,
        600,
        602
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 605,
      "size": 1,
      "prs": [
        620
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        608,
        610,
        611,
        615,
        616
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 606,
      "size": 1,
      "prs": [
        621
      ],
      "internal_edge_ids": [],
      "condensation_level": 0,
      "predecessor_components": [],
      "successor_components": [
        613
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 607,
      "size": 1,
      "prs": [
        622
      ],
      "internal_edge_ids": [],
      "condensation_level": 75,
      "predecessor_components": [
        494,
        501,
        516,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        589,
        592,
        594,
        599,
        600,
        602
      ],
      "successor_components": [
        608,
        609,
        610,
        611,
        612,
        614,
        617
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 608,
      "size": 1,
      "prs": [
        623
      ],
      "internal_edge_ids": [],
      "condensation_level": 76,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        589,
        592,
        594,
        599,
        600,
        602,
        605,
        607
      ],
      "successor_components": [
        610,
        611,
        612,
        614,
        618
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 609,
      "size": 1,
      "prs": [
        624
      ],
      "internal_edge_ids": [],
      "condensation_level": 76,
      "predecessor_components": [
        528,
        589,
        602,
        607
      ],
      "successor_components": [
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 610,
      "size": 1,
      "prs": [
        625
      ],
      "internal_edge_ids": [],
      "condensation_level": 77,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        589,
        592,
        594,
        599,
        600,
        602,
        605,
        607,
        608
      ],
      "successor_components": [
        614
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 611,
      "size": 1,
      "prs": [
        626
      ],
      "internal_edge_ids": [],
      "condensation_level": 77,
      "predecessor_components": [
        605,
        607,
        608
      ],
      "successor_components": [
        614,
        618
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 612,
      "size": 1,
      "prs": [
        627
      ],
      "internal_edge_ids": [],
      "condensation_level": 77,
      "predecessor_components": [
        528,
        607,
        608
      ],
      "successor_components": [
        614,
        617,
        618
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 613,
      "size": 1,
      "prs": [
        628
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        606
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 614,
      "size": 1,
      "prs": [
        629
      ],
      "internal_edge_ids": [],
      "condensation_level": 78,
      "predecessor_components": [
        494,
        501,
        553,
        554,
        556,
        560,
        568,
        576,
        577,
        578,
        581,
        584,
        585,
        586,
        589,
        592,
        594,
        599,
        600,
        602,
        603,
        607,
        608,
        609,
        610,
        611,
        612
      ],
      "successor_components": [
        618
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 615,
      "size": 1,
      "prs": [
        630
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        605
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 616,
      "size": 1,
      "prs": [
        631
      ],
      "internal_edge_ids": [],
      "condensation_level": 1,
      "predecessor_components": [
        605
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 617,
      "size": 1,
      "prs": [
        632
      ],
      "internal_edge_ids": [],
      "condensation_level": 78,
      "predecessor_components": [
        528,
        607,
        612
      ],
      "successor_components": [
        618
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    },
    {
      "specification": "URL + shorthand body",
      "component_id": 618,
      "size": 1,
      "prs": [
        633
      ],
      "internal_edge_ids": [],
      "condensation_level": 79,
      "predecessor_components": [
        528,
        608,
        611,
        612,
        614,
        617
      ],
      "successor_components": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "meaning": "SCC condensation depth, not idea generation or historical order"
    }
  ],
  "communities": [
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 0,
      "size": 251,
      "prs": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        9,
        10,
        11,
        12,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        26,
        27,
        28,
        29,
        30,
        31,
        32,
        33,
        34,
        35,
        36,
        37,
        38,
        39,
        40,
        51,
        62,
        66,
        90,
        96,
        97,
        99,
        100,
        102,
        103,
        104,
        110,
        111,
        112,
        113,
        114,
        115,
        116,
        117,
        118,
        119,
        120,
        122,
        123,
        124,
        125,
        126,
        127,
        128,
        129,
        130,
        131,
        132,
        133,
        134,
        135,
        136,
        137,
        138,
        139,
        140,
        141,
        142,
        143,
        144,
        145,
        146,
        147,
        148,
        149,
        150,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        167,
        168,
        169,
        170,
        171,
        172,
        175,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        195,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        209,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        228,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        264,
        265,
        266,
        267,
        268,
        269,
        270,
        271,
        272,
        273,
        274,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        289,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        325,
        327,
        328,
        330,
        331,
        340,
        346,
        348,
        350,
        352,
        363,
        365,
        370,
        373,
        375,
        376,
        377,
        379,
        381,
        382,
        384,
        385,
        386,
        387,
        388,
        389,
        390,
        392,
        393,
        396,
        397,
        398,
        425,
        426,
        433,
        436,
        437,
        440,
        441,
        445,
        469,
        513
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 1,
      "size": 143,
      "prs": [
        434,
        442,
        443,
        444,
        447,
        448,
        449,
        450,
        451,
        453,
        454,
        455,
        456,
        458,
        460,
        461,
        462,
        463,
        464,
        465,
        467,
        470,
        471,
        472,
        473,
        476,
        477,
        478,
        480,
        483,
        484,
        485,
        490,
        491,
        493,
        494,
        495,
        496,
        498,
        499,
        501,
        503,
        505,
        507,
        508,
        509,
        510,
        514,
        516,
        517,
        518,
        520,
        522,
        523,
        527,
        528,
        529,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        546,
        547,
        548,
        549,
        550,
        551,
        552,
        553,
        556,
        557,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        581,
        582,
        583,
        584,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        595,
        596,
        597,
        598,
        599,
        600,
        601,
        603,
        604,
        607,
        608,
        609,
        610,
        611,
        612,
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        620,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        630,
        631,
        632,
        633
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 2,
      "size": 65,
      "prs": [
        41,
        43,
        44,
        45,
        46,
        47,
        48,
        49,
        50,
        52,
        53,
        54,
        55,
        56,
        57,
        58,
        59,
        60,
        61,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        72,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        107,
        108,
        109,
        121,
        226,
        361,
        488,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        585,
        605
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 3,
      "size": 31,
      "prs": [
        288,
        318,
        320,
        321,
        329,
        349,
        354,
        358,
        359,
        364,
        366,
        367,
        368,
        369,
        372,
        378,
        394,
        395,
        399,
        401,
        402,
        403,
        404,
        405,
        406,
        407,
        409,
        413,
        417,
        430,
        452
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 4,
      "size": 22,
      "prs": [
        275,
        287,
        290,
        291,
        292,
        293,
        294,
        295,
        296,
        297,
        299,
        300,
        301,
        302,
        303,
        305,
        306,
        307,
        308,
        322,
        323,
        438
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 5,
      "size": 3,
      "prs": [
        283,
        284,
        286
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 6,
      "size": 2,
      "prs": [
        95,
        98
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 7,
      "size": 2,
      "prs": [
        317,
        319
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 8,
      "size": 2,
      "prs": [
        554,
        560
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 9,
      "size": 2,
      "prs": [
        621,
        628
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 10,
      "size": 1,
      "prs": [
        8
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 11,
      "size": 1,
      "prs": [
        15
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 12,
      "size": 1,
      "prs": [
        42
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 13,
      "size": 1,
      "prs": [
        83
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 14,
      "size": 1,
      "prs": [
        93
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 15,
      "size": 1,
      "prs": [
        105
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 16,
      "size": 1,
      "prs": [
        106
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 17,
      "size": 1,
      "prs": [
        151
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 18,
      "size": 1,
      "prs": [
        152
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 19,
      "size": 1,
      "prs": [
        155
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 20,
      "size": 1,
      "prs": [
        156
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 21,
      "size": 1,
      "prs": [
        157
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 22,
      "size": 1,
      "prs": [
        159
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 23,
      "size": 1,
      "prs": [
        160
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 24,
      "size": 1,
      "prs": [
        164
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 25,
      "size": 1,
      "prs": [
        173
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 26,
      "size": 1,
      "prs": [
        174
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 27,
      "size": 1,
      "prs": [
        188
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 28,
      "size": 1,
      "prs": [
        190
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 29,
      "size": 1,
      "prs": [
        201
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 30,
      "size": 1,
      "prs": [
        203
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 31,
      "size": 1,
      "prs": [
        215
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 32,
      "size": 1,
      "prs": [
        218
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 33,
      "size": 1,
      "prs": [
        222
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 34,
      "size": 1,
      "prs": [
        231
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 35,
      "size": 1,
      "prs": [
        236
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 36,
      "size": 1,
      "prs": [
        239
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 37,
      "size": 1,
      "prs": [
        242
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 38,
      "size": 1,
      "prs": [
        298
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 39,
      "size": 1,
      "prs": [
        324
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 40,
      "size": 1,
      "prs": [
        326
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 41,
      "size": 1,
      "prs": [
        332
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 42,
      "size": 1,
      "prs": [
        333
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 43,
      "size": 1,
      "prs": [
        334
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 44,
      "size": 1,
      "prs": [
        335
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 45,
      "size": 1,
      "prs": [
        336
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 46,
      "size": 1,
      "prs": [
        337
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 47,
      "size": 1,
      "prs": [
        338
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 48,
      "size": 1,
      "prs": [
        339
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 49,
      "size": 1,
      "prs": [
        341
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 50,
      "size": 1,
      "prs": [
        342
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 51,
      "size": 1,
      "prs": [
        343
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 52,
      "size": 1,
      "prs": [
        344
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 53,
      "size": 1,
      "prs": [
        345
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 54,
      "size": 1,
      "prs": [
        347
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 55,
      "size": 1,
      "prs": [
        351
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 56,
      "size": 1,
      "prs": [
        353
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 57,
      "size": 1,
      "prs": [
        355
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 58,
      "size": 1,
      "prs": [
        356
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 59,
      "size": 1,
      "prs": [
        357
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 60,
      "size": 1,
      "prs": [
        360
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 61,
      "size": 1,
      "prs": [
        362
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 62,
      "size": 1,
      "prs": [
        371
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 63,
      "size": 1,
      "prs": [
        374
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 64,
      "size": 1,
      "prs": [
        380
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 65,
      "size": 1,
      "prs": [
        383
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 66,
      "size": 1,
      "prs": [
        391
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 67,
      "size": 1,
      "prs": [
        400
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 68,
      "size": 1,
      "prs": [
        408
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 69,
      "size": 1,
      "prs": [
        410
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 70,
      "size": 1,
      "prs": [
        411
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 71,
      "size": 1,
      "prs": [
        412
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 72,
      "size": 1,
      "prs": [
        414
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 73,
      "size": 1,
      "prs": [
        415
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 74,
      "size": 1,
      "prs": [
        416
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 75,
      "size": 1,
      "prs": [
        418
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 76,
      "size": 1,
      "prs": [
        419
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 77,
      "size": 1,
      "prs": [
        420
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 78,
      "size": 1,
      "prs": [
        421
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 79,
      "size": 1,
      "prs": [
        422
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 80,
      "size": 1,
      "prs": [
        423
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 81,
      "size": 1,
      "prs": [
        424
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 82,
      "size": 1,
      "prs": [
        427
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 83,
      "size": 1,
      "prs": [
        428
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 84,
      "size": 1,
      "prs": [
        429
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 85,
      "size": 1,
      "prs": [
        431
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 86,
      "size": 1,
      "prs": [
        432
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 87,
      "size": 1,
      "prs": [
        435
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 88,
      "size": 1,
      "prs": [
        439
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 89,
      "size": 1,
      "prs": [
        446
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 90,
      "size": 1,
      "prs": [
        457
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 91,
      "size": 1,
      "prs": [
        459
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 92,
      "size": 1,
      "prs": [
        466
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 93,
      "size": 1,
      "prs": [
        468
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 94,
      "size": 1,
      "prs": [
        474
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 95,
      "size": 1,
      "prs": [
        475
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 96,
      "size": 1,
      "prs": [
        479
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 97,
      "size": 1,
      "prs": [
        481
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 98,
      "size": 1,
      "prs": [
        482
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 99,
      "size": 1,
      "prs": [
        486
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 100,
      "size": 1,
      "prs": [
        487
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 101,
      "size": 1,
      "prs": [
        489
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 102,
      "size": 1,
      "prs": [
        492
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 103,
      "size": 1,
      "prs": [
        497
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 104,
      "size": 1,
      "prs": [
        500
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 105,
      "size": 1,
      "prs": [
        502
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 106,
      "size": 1,
      "prs": [
        504
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 107,
      "size": 1,
      "prs": [
        506
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 108,
      "size": 1,
      "prs": [
        512
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 109,
      "size": 1,
      "prs": [
        515
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 110,
      "size": 1,
      "prs": [
        521
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 111,
      "size": 1,
      "prs": [
        524
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 112,
      "size": 1,
      "prs": [
        525
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 113,
      "size": 1,
      "prs": [
        532
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 114,
      "size": 1,
      "prs": [
        537
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 115,
      "size": 1,
      "prs": [
        555
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 116,
      "size": 1,
      "prs": [
        580
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 117,
      "size": 1,
      "prs": [
        589
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 118,
      "size": 1,
      "prs": [
        602
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 0.5,
      "community_id": 119,
      "size": 1,
      "prs": [
        606
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 0,
      "size": 147,
      "prs": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        9,
        10,
        11,
        12,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        26,
        27,
        28,
        29,
        30,
        31,
        32,
        33,
        34,
        35,
        36,
        37,
        38,
        39,
        40,
        41,
        43,
        44,
        45,
        46,
        47,
        48,
        49,
        50,
        51,
        52,
        53,
        54,
        55,
        56,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        66,
        67,
        68,
        69,
        70,
        71,
        72,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        97,
        99,
        100,
        101,
        102,
        103,
        104,
        107,
        108,
        109,
        110,
        111,
        112,
        113,
        114,
        115,
        116,
        117,
        118,
        119,
        120,
        121,
        122,
        123,
        124,
        125,
        126,
        127,
        128,
        129,
        130,
        131,
        132,
        133,
        134,
        135,
        136,
        137,
        138,
        139,
        140,
        141,
        142,
        143,
        145,
        146,
        147,
        148,
        150,
        177,
        226,
        433,
        437,
        440,
        441,
        461,
        469
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 1,
      "size": 138,
      "prs": [
        386,
        434,
        442,
        443,
        444,
        445,
        447,
        448,
        449,
        450,
        451,
        453,
        454,
        455,
        456,
        458,
        460,
        462,
        463,
        464,
        465,
        467,
        470,
        471,
        472,
        473,
        476,
        477,
        478,
        480,
        483,
        484,
        485,
        490,
        491,
        493,
        494,
        495,
        496,
        498,
        499,
        501,
        503,
        505,
        507,
        508,
        509,
        510,
        514,
        516,
        517,
        518,
        520,
        522,
        523,
        527,
        529,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        540,
        541,
        543,
        544,
        545,
        547,
        548,
        549,
        550,
        551,
        552,
        553,
        556,
        557,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        599,
        600,
        601,
        603,
        604,
        607,
        608,
        609,
        610,
        611,
        612,
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        620,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        630,
        631,
        632,
        633
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 2,
      "size": 137,
      "prs": [
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        167,
        168,
        169,
        170,
        171,
        172,
        175,
        176,
        178,
        179,
        180,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        195,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        209,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        228,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        264,
        265,
        266,
        267,
        268,
        269,
        270,
        271,
        272,
        273,
        274,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        289,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        382,
        385,
        393,
        436,
        513
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 3,
      "size": 48,
      "prs": [
        288,
        318,
        328,
        329,
        349,
        350,
        354,
        358,
        359,
        363,
        364,
        365,
        366,
        367,
        368,
        369,
        372,
        376,
        377,
        378,
        379,
        381,
        384,
        387,
        388,
        389,
        390,
        392,
        394,
        395,
        396,
        397,
        398,
        399,
        401,
        402,
        403,
        404,
        405,
        406,
        407,
        409,
        413,
        417,
        425,
        426,
        430,
        452
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 4,
      "size": 24,
      "prs": [
        275,
        287,
        290,
        291,
        292,
        293,
        294,
        295,
        296,
        297,
        299,
        300,
        301,
        302,
        303,
        305,
        306,
        307,
        308,
        320,
        321,
        322,
        323,
        438
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 5,
      "size": 14,
      "prs": [
        361,
        488,
        511,
        519,
        526,
        528,
        530,
        565,
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 6,
      "size": 3,
      "prs": [
        283,
        284,
        286
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 7,
      "size": 2,
      "prs": [
        95,
        98
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 8,
      "size": 2,
      "prs": [
        317,
        319
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 9,
      "size": 2,
      "prs": [
        542,
        546
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 10,
      "size": 2,
      "prs": [
        554,
        560
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 11,
      "size": 2,
      "prs": [
        595,
        598
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 12,
      "size": 2,
      "prs": [
        621,
        628
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 13,
      "size": 1,
      "prs": [
        8
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 14,
      "size": 1,
      "prs": [
        15
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 15,
      "size": 1,
      "prs": [
        42
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 16,
      "size": 1,
      "prs": [
        83
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 17,
      "size": 1,
      "prs": [
        93
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 18,
      "size": 1,
      "prs": [
        105
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 19,
      "size": 1,
      "prs": [
        106
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 20,
      "size": 1,
      "prs": [
        151
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 21,
      "size": 1,
      "prs": [
        152
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 22,
      "size": 1,
      "prs": [
        155
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 23,
      "size": 1,
      "prs": [
        156
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 24,
      "size": 1,
      "prs": [
        157
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 25,
      "size": 1,
      "prs": [
        159
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 26,
      "size": 1,
      "prs": [
        160
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 27,
      "size": 1,
      "prs": [
        164
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 28,
      "size": 1,
      "prs": [
        173
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 29,
      "size": 1,
      "prs": [
        174
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 30,
      "size": 1,
      "prs": [
        188
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 31,
      "size": 1,
      "prs": [
        190
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 32,
      "size": 1,
      "prs": [
        201
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 33,
      "size": 1,
      "prs": [
        203
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 34,
      "size": 1,
      "prs": [
        215
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 35,
      "size": 1,
      "prs": [
        218
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 36,
      "size": 1,
      "prs": [
        222
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 37,
      "size": 1,
      "prs": [
        231
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 38,
      "size": 1,
      "prs": [
        236
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 39,
      "size": 1,
      "prs": [
        239
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 40,
      "size": 1,
      "prs": [
        242
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 41,
      "size": 1,
      "prs": [
        298
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 42,
      "size": 1,
      "prs": [
        324
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 43,
      "size": 1,
      "prs": [
        326
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 44,
      "size": 1,
      "prs": [
        332
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 45,
      "size": 1,
      "prs": [
        333
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 46,
      "size": 1,
      "prs": [
        334
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 47,
      "size": 1,
      "prs": [
        335
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 48,
      "size": 1,
      "prs": [
        336
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 49,
      "size": 1,
      "prs": [
        337
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 50,
      "size": 1,
      "prs": [
        338
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 51,
      "size": 1,
      "prs": [
        339
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 52,
      "size": 1,
      "prs": [
        341
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 53,
      "size": 1,
      "prs": [
        342
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 54,
      "size": 1,
      "prs": [
        343
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 55,
      "size": 1,
      "prs": [
        344
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 56,
      "size": 1,
      "prs": [
        345
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 57,
      "size": 1,
      "prs": [
        347
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 58,
      "size": 1,
      "prs": [
        351
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 59,
      "size": 1,
      "prs": [
        353
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 60,
      "size": 1,
      "prs": [
        355
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 61,
      "size": 1,
      "prs": [
        356
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 62,
      "size": 1,
      "prs": [
        357
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 63,
      "size": 1,
      "prs": [
        360
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 64,
      "size": 1,
      "prs": [
        362
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 65,
      "size": 1,
      "prs": [
        371
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 66,
      "size": 1,
      "prs": [
        374
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 67,
      "size": 1,
      "prs": [
        380
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 68,
      "size": 1,
      "prs": [
        383
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 69,
      "size": 1,
      "prs": [
        391
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 70,
      "size": 1,
      "prs": [
        400
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 71,
      "size": 1,
      "prs": [
        408
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 72,
      "size": 1,
      "prs": [
        410
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 73,
      "size": 1,
      "prs": [
        411
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 74,
      "size": 1,
      "prs": [
        412
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 75,
      "size": 1,
      "prs": [
        414
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 76,
      "size": 1,
      "prs": [
        415
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 77,
      "size": 1,
      "prs": [
        416
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 78,
      "size": 1,
      "prs": [
        418
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 79,
      "size": 1,
      "prs": [
        419
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 80,
      "size": 1,
      "prs": [
        420
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 81,
      "size": 1,
      "prs": [
        421
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 82,
      "size": 1,
      "prs": [
        422
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 83,
      "size": 1,
      "prs": [
        423
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 84,
      "size": 1,
      "prs": [
        424
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 85,
      "size": 1,
      "prs": [
        427
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 86,
      "size": 1,
      "prs": [
        428
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 87,
      "size": 1,
      "prs": [
        429
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 88,
      "size": 1,
      "prs": [
        431
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 89,
      "size": 1,
      "prs": [
        432
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 90,
      "size": 1,
      "prs": [
        435
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 91,
      "size": 1,
      "prs": [
        439
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 92,
      "size": 1,
      "prs": [
        446
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 93,
      "size": 1,
      "prs": [
        457
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 94,
      "size": 1,
      "prs": [
        459
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 95,
      "size": 1,
      "prs": [
        466
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 96,
      "size": 1,
      "prs": [
        468
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 97,
      "size": 1,
      "prs": [
        474
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 98,
      "size": 1,
      "prs": [
        475
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 99,
      "size": 1,
      "prs": [
        479
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 100,
      "size": 1,
      "prs": [
        481
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 101,
      "size": 1,
      "prs": [
        482
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 102,
      "size": 1,
      "prs": [
        486
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 103,
      "size": 1,
      "prs": [
        487
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 104,
      "size": 1,
      "prs": [
        489
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 105,
      "size": 1,
      "prs": [
        492
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 106,
      "size": 1,
      "prs": [
        497
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 107,
      "size": 1,
      "prs": [
        500
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 108,
      "size": 1,
      "prs": [
        502
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 109,
      "size": 1,
      "prs": [
        504
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 110,
      "size": 1,
      "prs": [
        506
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 111,
      "size": 1,
      "prs": [
        512
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 112,
      "size": 1,
      "prs": [
        515
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 113,
      "size": 1,
      "prs": [
        521
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 114,
      "size": 1,
      "prs": [
        524
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 115,
      "size": 1,
      "prs": [
        525
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 116,
      "size": 1,
      "prs": [
        532
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 117,
      "size": 1,
      "prs": [
        537
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 118,
      "size": 1,
      "prs": [
        555
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 119,
      "size": 1,
      "prs": [
        580
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 120,
      "size": 1,
      "prs": [
        589
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 121,
      "size": 1,
      "prs": [
        602
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 1.0,
      "community_id": 122,
      "size": 1,
      "prs": [
        606
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 0,
      "size": 94,
      "prs": [
        149,
        153,
        154,
        162,
        166,
        168,
        175,
        176,
        178,
        179,
        180,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        209,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        260,
        262,
        264,
        268,
        277,
        285,
        289,
        304,
        315,
        316,
        325,
        327,
        330,
        331,
        340,
        373,
        375,
        382,
        385,
        513
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 1,
      "size": 79,
      "prs": [
        386,
        433,
        434,
        436,
        437,
        442,
        443,
        444,
        445,
        447,
        448,
        449,
        450,
        451,
        453,
        454,
        455,
        456,
        458,
        460,
        461,
        462,
        463,
        464,
        465,
        467,
        470,
        471,
        472,
        473,
        476,
        477,
        478,
        480,
        483,
        484,
        485,
        490,
        491,
        493,
        494,
        495,
        496,
        498,
        499,
        501,
        503,
        505,
        508,
        510,
        518,
        522,
        523,
        527,
        529,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        540,
        541,
        542,
        544,
        545,
        546,
        547,
        548,
        549,
        551,
        552,
        553,
        556,
        557,
        590,
        597,
        612
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 2,
      "size": 75,
      "prs": [
        2,
        3,
        4,
        5,
        6,
        7,
        9,
        10,
        11,
        12,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        97,
        104,
        110,
        111,
        112,
        113,
        114,
        115,
        116,
        117,
        118,
        119,
        120,
        122,
        123,
        124,
        125,
        126,
        127,
        128,
        129,
        130,
        131,
        132,
        133,
        134,
        135,
        136,
        137,
        138,
        139,
        140,
        142,
        143,
        144,
        145,
        146,
        147,
        148,
        150,
        158,
        177,
        440,
        441,
        469
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 3,
      "size": 71,
      "prs": [
        1,
        26,
        34,
        35,
        37,
        38,
        39,
        40,
        41,
        43,
        44,
        45,
        46,
        47,
        48,
        49,
        50,
        51,
        52,
        53,
        54,
        55,
        56,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        66,
        67,
        68,
        69,
        70,
        71,
        72,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        100,
        101,
        102,
        103,
        107,
        108,
        109,
        121,
        141,
        226
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 4,
      "size": 64,
      "prs": [
        507,
        509,
        514,
        516,
        517,
        520,
        528,
        543,
        550,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        581,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        608,
        609,
        610,
        611,
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 5,
      "size": 41,
      "prs": [
        259,
        261,
        263,
        265,
        266,
        267,
        269,
        270,
        272,
        273,
        278,
        328,
        350,
        352,
        363,
        365,
        370,
        376,
        377,
        379,
        381,
        387,
        388,
        389,
        390,
        392,
        396,
        397,
        398,
        401,
        402,
        403,
        404,
        405,
        406,
        409,
        413,
        417,
        425,
        426,
        430
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 6,
      "size": 39,
      "prs": [
        256,
        271,
        274,
        276,
        279,
        280,
        281,
        282,
        283,
        284,
        286,
        288,
        309,
        310,
        311,
        312,
        313,
        314,
        318,
        329,
        346,
        348,
        349,
        354,
        358,
        359,
        364,
        366,
        367,
        368,
        369,
        372,
        378,
        393,
        394,
        395,
        399,
        407,
        452
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 7,
      "size": 25,
      "prs": [
        275,
        287,
        290,
        291,
        292,
        293,
        294,
        295,
        296,
        297,
        299,
        300,
        301,
        302,
        303,
        305,
        306,
        307,
        308,
        320,
        321,
        322,
        323,
        384,
        438
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 8,
      "size": 12,
      "prs": [
        361,
        488,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        585,
        605
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 9,
      "size": 8,
      "prs": [
        161,
        163,
        165,
        167,
        169,
        170,
        171,
        172
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 10,
      "size": 3,
      "prs": [
        620,
        630,
        631
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 11,
      "size": 2,
      "prs": [
        95,
        98
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 12,
      "size": 2,
      "prs": [
        195,
        228
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 13,
      "size": 2,
      "prs": [
        317,
        319
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 14,
      "size": 2,
      "prs": [
        554,
        560
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 15,
      "size": 2,
      "prs": [
        595,
        598
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 16,
      "size": 2,
      "prs": [
        621,
        628
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 17,
      "size": 1,
      "prs": [
        8
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 18,
      "size": 1,
      "prs": [
        15
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 19,
      "size": 1,
      "prs": [
        42
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 20,
      "size": 1,
      "prs": [
        83
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 21,
      "size": 1,
      "prs": [
        93
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 22,
      "size": 1,
      "prs": [
        105
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 23,
      "size": 1,
      "prs": [
        106
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 24,
      "size": 1,
      "prs": [
        151
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 25,
      "size": 1,
      "prs": [
        152
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 26,
      "size": 1,
      "prs": [
        155
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 27,
      "size": 1,
      "prs": [
        156
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 28,
      "size": 1,
      "prs": [
        157
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 29,
      "size": 1,
      "prs": [
        159
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 30,
      "size": 1,
      "prs": [
        160
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 31,
      "size": 1,
      "prs": [
        164
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 32,
      "size": 1,
      "prs": [
        173
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 33,
      "size": 1,
      "prs": [
        174
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 34,
      "size": 1,
      "prs": [
        188
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 35,
      "size": 1,
      "prs": [
        190
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 36,
      "size": 1,
      "prs": [
        201
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 37,
      "size": 1,
      "prs": [
        203
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 38,
      "size": 1,
      "prs": [
        215
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 39,
      "size": 1,
      "prs": [
        218
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 40,
      "size": 1,
      "prs": [
        222
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 41,
      "size": 1,
      "prs": [
        231
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 42,
      "size": 1,
      "prs": [
        236
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 43,
      "size": 1,
      "prs": [
        239
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 44,
      "size": 1,
      "prs": [
        242
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 45,
      "size": 1,
      "prs": [
        298
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 46,
      "size": 1,
      "prs": [
        324
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 47,
      "size": 1,
      "prs": [
        326
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 48,
      "size": 1,
      "prs": [
        332
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 49,
      "size": 1,
      "prs": [
        333
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 50,
      "size": 1,
      "prs": [
        334
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 51,
      "size": 1,
      "prs": [
        335
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 52,
      "size": 1,
      "prs": [
        336
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 53,
      "size": 1,
      "prs": [
        337
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 54,
      "size": 1,
      "prs": [
        338
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 55,
      "size": 1,
      "prs": [
        339
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 56,
      "size": 1,
      "prs": [
        341
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 57,
      "size": 1,
      "prs": [
        342
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 58,
      "size": 1,
      "prs": [
        343
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 59,
      "size": 1,
      "prs": [
        344
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 60,
      "size": 1,
      "prs": [
        345
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 61,
      "size": 1,
      "prs": [
        347
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 62,
      "size": 1,
      "prs": [
        351
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 63,
      "size": 1,
      "prs": [
        353
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 64,
      "size": 1,
      "prs": [
        355
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 65,
      "size": 1,
      "prs": [
        356
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 66,
      "size": 1,
      "prs": [
        357
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 67,
      "size": 1,
      "prs": [
        360
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 68,
      "size": 1,
      "prs": [
        362
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 69,
      "size": 1,
      "prs": [
        371
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 70,
      "size": 1,
      "prs": [
        374
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 71,
      "size": 1,
      "prs": [
        380
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 72,
      "size": 1,
      "prs": [
        383
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 73,
      "size": 1,
      "prs": [
        391
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 74,
      "size": 1,
      "prs": [
        400
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 75,
      "size": 1,
      "prs": [
        408
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 76,
      "size": 1,
      "prs": [
        410
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 77,
      "size": 1,
      "prs": [
        411
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 78,
      "size": 1,
      "prs": [
        412
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 79,
      "size": 1,
      "prs": [
        414
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 80,
      "size": 1,
      "prs": [
        415
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 81,
      "size": 1,
      "prs": [
        416
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 82,
      "size": 1,
      "prs": [
        418
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 83,
      "size": 1,
      "prs": [
        419
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 84,
      "size": 1,
      "prs": [
        420
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 85,
      "size": 1,
      "prs": [
        421
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 86,
      "size": 1,
      "prs": [
        422
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 87,
      "size": 1,
      "prs": [
        423
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 88,
      "size": 1,
      "prs": [
        424
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 89,
      "size": 1,
      "prs": [
        427
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 90,
      "size": 1,
      "prs": [
        428
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 91,
      "size": 1,
      "prs": [
        429
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 92,
      "size": 1,
      "prs": [
        431
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 93,
      "size": 1,
      "prs": [
        432
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 94,
      "size": 1,
      "prs": [
        435
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 95,
      "size": 1,
      "prs": [
        439
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 96,
      "size": 1,
      "prs": [
        446
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 97,
      "size": 1,
      "prs": [
        457
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 98,
      "size": 1,
      "prs": [
        459
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 99,
      "size": 1,
      "prs": [
        466
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 100,
      "size": 1,
      "prs": [
        468
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 101,
      "size": 1,
      "prs": [
        474
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 102,
      "size": 1,
      "prs": [
        475
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 103,
      "size": 1,
      "prs": [
        479
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 104,
      "size": 1,
      "prs": [
        481
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 105,
      "size": 1,
      "prs": [
        482
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 106,
      "size": 1,
      "prs": [
        486
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 107,
      "size": 1,
      "prs": [
        487
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 108,
      "size": 1,
      "prs": [
        489
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 109,
      "size": 1,
      "prs": [
        492
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 110,
      "size": 1,
      "prs": [
        497
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 111,
      "size": 1,
      "prs": [
        500
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 112,
      "size": 1,
      "prs": [
        502
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 113,
      "size": 1,
      "prs": [
        504
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 114,
      "size": 1,
      "prs": [
        506
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 115,
      "size": 1,
      "prs": [
        512
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 116,
      "size": 1,
      "prs": [
        515
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 117,
      "size": 1,
      "prs": [
        521
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 118,
      "size": 1,
      "prs": [
        524
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 119,
      "size": 1,
      "prs": [
        525
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 120,
      "size": 1,
      "prs": [
        532
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 121,
      "size": 1,
      "prs": [
        537
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 122,
      "size": 1,
      "prs": [
        555
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 123,
      "size": 1,
      "prs": [
        580
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 124,
      "size": 1,
      "prs": [
        589
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 125,
      "size": 1,
      "prs": [
        602
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    },
    {
      "specification": "URL + shorthand body",
      "resolution": 2.0,
      "community_id": 126,
      "size": 1,
      "prs": [
        606
      ],
      "input_ledger": "Entire nonself in-census body URL + PR shorthand graph, symmetrized; reference_occurrences.csv",
      "label": "Algorithmic reference community; not a scientific school or idea family"
    }
  ],
  "families": [
    "audit-and-accounting",
    "cold-end-supplier",
    "e8-geometry",
    "e8-kernel-and-hosting",
    "e8-local-word",
    "frames-and-banks",
    "local-word-optimization",
    "negative-result",
    "negative-verification",
    "paired-circuit-accounting",
    "paired-cube",
    "speculative-bank-schedules"
  ],
  "neighborhoods": [
    {
      "specification": "URL + shorthand body",
      "pr": 1,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 1,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 1,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 1,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:1:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 1,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:1:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 1,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:1:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 2,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 2,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 2,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 2,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        32,
        36,
        66,
        102,
        104,
        115,
        130,
        144,
        274,
        469
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:2:36",
        "reference:2:66",
        "reference:2:102",
        "reference:2:104",
        "reference:2:115",
        "reference:2:130",
        "reference:2:144",
        "reference:2:274",
        "reference:2:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 2,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        102,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        274,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:2:36",
        "reference:2:66",
        "reference:2:102",
        "reference:2:104",
        "reference:2:115",
        "reference:2:130",
        "reference:2:144",
        "reference:2:274",
        "reference:2:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:102:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": 83,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 2,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 150,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        102,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        274,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:2:36",
        "reference:2:66",
        "reference:2:102",
        "reference:2:104",
        "reference:2:115",
        "reference:2:130",
        "reference:2:144",
        "reference:2:274",
        "reference:2:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:102:103",
        "reference:103:74",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 43,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 3,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 3,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 3,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 3,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        32,
        36,
        104,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:3:32",
        "reference:3:36",
        "reference:3:104",
        "reference:3:115",
        "reference:3:130",
        "reference:3:144",
        "reference:3:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 3,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:3:32",
        "reference:3:36",
        "reference:3:104",
        "reference:3:115",
        "reference:3:130",
        "reference:3:144",
        "reference:3:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 82,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 3,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 148,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:3:32",
        "reference:3:36",
        "reference:3:104",
        "reference:3:115",
        "reference:3:130",
        "reference:3:144",
        "reference:3:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 41,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 4,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 4,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 4,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 4,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        32,
        36,
        66,
        104,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:4:32",
        "reference:4:36",
        "reference:4:66",
        "reference:4:104",
        "reference:4:115",
        "reference:4:130",
        "reference:4:144",
        "reference:4:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 4,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:4:32",
        "reference:4:36",
        "reference:4:66",
        "reference:4:104",
        "reference:4:115",
        "reference:4:130",
        "reference:4:144",
        "reference:4:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 82,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 4,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 148,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:4:32",
        "reference:4:36",
        "reference:4:66",
        "reference:4:104",
        "reference:4:115",
        "reference:4:130",
        "reference:4:144",
        "reference:4:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 41,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 5,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 5,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 5,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 5,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        32,
        36,
        104,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:5:32",
        "reference:5:36",
        "reference:5:104",
        "reference:5:115",
        "reference:5:130",
        "reference:5:144",
        "reference:5:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 5,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:5:32",
        "reference:5:36",
        "reference:5:104",
        "reference:5:115",
        "reference:5:130",
        "reference:5:144",
        "reference:5:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 82,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 5,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 148,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:5:32",
        "reference:5:36",
        "reference:5:104",
        "reference:5:115",
        "reference:5:130",
        "reference:5:144",
        "reference:5:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 41,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 6,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 6,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 6,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 6,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        32,
        36,
        104,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:6:32",
        "reference:6:36",
        "reference:6:104",
        "reference:6:115",
        "reference:6:130",
        "reference:6:144",
        "reference:6:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 6,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:6:32",
        "reference:6:36",
        "reference:6:104",
        "reference:6:115",
        "reference:6:130",
        "reference:6:144",
        "reference:6:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 82,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 6,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 148,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:6:32",
        "reference:6:36",
        "reference:6:104",
        "reference:6:115",
        "reference:6:130",
        "reference:6:144",
        "reference:6:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 41,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 7,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 7,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 7,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 7,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        10,
        11,
        20,
        23,
        32,
        36,
        66,
        104,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:11",
        "reference:7:20",
        "reference:7:23",
        "reference:7:32",
        "reference:7:36",
        "reference:7:66",
        "reference:7:104",
        "reference:7:115",
        "reference:7:130",
        "reference:7:144",
        "reference:7:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 7,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 63,
      "contributing_pr_ids": [
        10,
        11,
        12,
        20,
        23,
        24,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        204,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:11",
        "reference:7:20",
        "reference:7:23",
        "reference:7:32",
        "reference:7:36",
        "reference:7:66",
        "reference:7:104",
        "reference:7:115",
        "reference:7:130",
        "reference:7:144",
        "reference:7:469",
        "reference:10:12",
        "reference:10:23",
        "reference:10:24",
        "reference:10:32",
        "reference:10:36",
        "reference:10:104",
        "reference:10:115",
        "reference:10:130",
        "reference:10:144",
        "reference:10:184",
        "reference:10:433",
        "reference:10:469",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": 120,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 7,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 162,
      "contributing_pr_ids": [
        10,
        11,
        12,
        20,
        23,
        24,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:11",
        "reference:7:20",
        "reference:7:23",
        "reference:7:32",
        "reference:7:36",
        "reference:7:66",
        "reference:7:104",
        "reference:7:115",
        "reference:7:130",
        "reference:7:144",
        "reference:7:469",
        "reference:10:12",
        "reference:10:23",
        "reference:10:24",
        "reference:10:32",
        "reference:10:36",
        "reference:10:104",
        "reference:10:115",
        "reference:10:130",
        "reference:10:144",
        "reference:10:184",
        "reference:10:433",
        "reference:10:469",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:24:29",
        "reference:24:32",
        "reference:24:36",
        "reference:24:104",
        "reference:24:110",
        "reference:24:115",
        "reference:24:130",
        "reference:24:144",
        "reference:24:184",
        "reference:24:433",
        "reference:24:469",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 42,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 8,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 8,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 8,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 8,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 8,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 8,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 9,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 9,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 9,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 9,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        11
      ],
      "contributing_edge_ids": [
        "reference:9:11"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 9,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        11
      ],
      "contributing_edge_ids": [
        "reference:9:11"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 9,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        11
      ],
      "contributing_edge_ids": [
        "reference:9:11"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 10,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        7
      ],
      "contributing_edge_ids": [
        "reference:7:10"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 10,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        7
      ],
      "contributing_edge_ids": [
        "reference:7:10"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 10,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        7
      ],
      "contributing_edge_ids": [
        "reference:7:10"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 10,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        12,
        23,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:10:12",
        "reference:10:23",
        "reference:10:24",
        "reference:10:32",
        "reference:10:36",
        "reference:10:104",
        "reference:10:115",
        "reference:10:130",
        "reference:10:144",
        "reference:10:184",
        "reference:10:433",
        "reference:10:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 10,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 85,
      "contributing_pr_ids": [
        12,
        23,
        24,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:10:12",
        "reference:10:23",
        "reference:10:24",
        "reference:10:32",
        "reference:10:36",
        "reference:10:104",
        "reference:10:115",
        "reference:10:130",
        "reference:10:144",
        "reference:10:184",
        "reference:10:433",
        "reference:10:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:24:29",
        "reference:24:32",
        "reference:24:36",
        "reference:24:104",
        "reference:24:110",
        "reference:24:115",
        "reference:24:130",
        "reference:24:144",
        "reference:24:184",
        "reference:24:433",
        "reference:24:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 26,
      "round_2_sum_neighbor_degree": 136,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 10,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 210,
      "contributing_pr_ids": [
        12,
        23,
        24,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:10:12",
        "reference:10:23",
        "reference:10:24",
        "reference:10:32",
        "reference:10:36",
        "reference:10:104",
        "reference:10:115",
        "reference:10:130",
        "reference:10:144",
        "reference:10:184",
        "reference:10:433",
        "reference:10:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:24:29",
        "reference:24:32",
        "reference:24:36",
        "reference:24:104",
        "reference:24:110",
        "reference:24:115",
        "reference:24:130",
        "reference:24:144",
        "reference:24:184",
        "reference:24:433",
        "reference:24:469",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 45,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 11,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        7,
        9
      ],
      "contributing_edge_ids": [
        "reference:7:11",
        "reference:9:11"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 11,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        7,
        9
      ],
      "contributing_edge_ids": [
        "reference:7:11",
        "reference:9:11"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 11,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        7,
        9
      ],
      "contributing_edge_ids": [
        "reference:7:11",
        "reference:9:11"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 11,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 11,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 11,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 12,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        10
      ],
      "contributing_edge_ids": [
        "reference:10:12"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 12,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        7,
        10
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:12"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 12,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        7,
        10
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:12"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 12,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 12,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 12,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 13,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 13,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 13,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 13,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        14,
        20,
        23,
        32,
        36,
        104,
        115,
        130,
        144
      ],
      "contributing_edge_ids": [
        "reference:13:14",
        "reference:13:20",
        "reference:13:23",
        "reference:13:32",
        "reference:13:36",
        "reference:13:104",
        "reference:13:115",
        "reference:13:130",
        "reference:13:144"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 13,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        14,
        20,
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        204,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:13:14",
        "reference:13:20",
        "reference:13:23",
        "reference:13:32",
        "reference:13:36",
        "reference:13:104",
        "reference:13:115",
        "reference:13:130",
        "reference:13:144",
        "reference:14:23",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": 109,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 13,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 159,
      "contributing_pr_ids": [
        14,
        20,
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:13:14",
        "reference:13:20",
        "reference:13:23",
        "reference:13:32",
        "reference:13:36",
        "reference:13:104",
        "reference:13:115",
        "reference:13:130",
        "reference:13:144",
        "reference:14:23",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 42,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 14,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        13
      ],
      "contributing_edge_ids": [
        "reference:13:14"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 14,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        13
      ],
      "contributing_edge_ids": [
        "reference:13:14"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 14,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        13
      ],
      "contributing_edge_ids": [
        "reference:13:14"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 14,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        23
      ],
      "contributing_edge_ids": [
        "reference:14:23"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 14,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        104,
        115,
        130,
        144,
        177,
        184,
        204,
        398,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:14:23",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 14,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 80,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        217,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        396,
        398,
        433,
        469,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:14:23",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:398:396",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 15,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 15,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 15,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 15,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 15,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 15,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 16,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 16,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 16,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 16,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        32,
        36,
        104,
        115,
        130,
        144
      ],
      "contributing_edge_ids": [
        "reference:16:32",
        "reference:16:36",
        "reference:16:104",
        "reference:16:115",
        "reference:16:130",
        "reference:16:144"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 16,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:16:32",
        "reference:16:36",
        "reference:16:104",
        "reference:16:115",
        "reference:16:130",
        "reference:16:144",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 82,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 16,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 148,
      "contributing_pr_ids": [
        32,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:16:32",
        "reference:16:36",
        "reference:16:104",
        "reference:16:115",
        "reference:16:130",
        "reference:16:144",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 41,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 17,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 17,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 17,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 17,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        20
      ],
      "contributing_edge_ids": [
        "reference:17:20"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 17,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        20,
        23,
        32,
        36,
        104,
        115,
        130,
        144,
        184,
        469
      ],
      "contributing_edge_ids": [
        "reference:17:20",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 17,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 73,
      "contributing_pr_ids": [
        20,
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:17:20",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 18,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 18,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 18,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 18,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        19,
        20,
        29,
        32,
        36,
        104,
        115,
        130,
        144,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:18:19",
        "reference:18:20",
        "reference:18:29",
        "reference:18:32",
        "reference:18:36",
        "reference:18:104",
        "reference:18:115",
        "reference:18:130",
        "reference:18:144",
        "reference:18:184",
        "reference:18:433",
        "reference:18:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 18,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 84,
      "contributing_pr_ids": [
        19,
        20,
        23,
        29,
        31,
        32,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:18:19",
        "reference:18:20",
        "reference:18:29",
        "reference:18:32",
        "reference:18:36",
        "reference:18:104",
        "reference:18:115",
        "reference:18:130",
        "reference:18:144",
        "reference:18:184",
        "reference:18:433",
        "reference:18:469",
        "reference:19:23",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 26,
      "round_2_sum_neighbor_degree": 129,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 18,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 210,
      "contributing_pr_ids": [
        19,
        20,
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:18:19",
        "reference:18:20",
        "reference:18:29",
        "reference:18:32",
        "reference:18:36",
        "reference:18:104",
        "reference:18:115",
        "reference:18:130",
        "reference:18:144",
        "reference:18:184",
        "reference:18:433",
        "reference:18:469",
        "reference:19:23",
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 45,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 19,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        18
      ],
      "contributing_edge_ids": [
        "reference:18:19"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 19,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        18
      ],
      "contributing_edge_ids": [
        "reference:18:19"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 19,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        18
      ],
      "contributing_edge_ids": [
        "reference:18:19"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 19,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        23
      ],
      "contributing_edge_ids": [
        "reference:19:23"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 19,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        104,
        115,
        130,
        144,
        177,
        184,
        204,
        398,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:19:23",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 19,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 80,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        217,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        396,
        398,
        433,
        469,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:19:23",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:398:396",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 20,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        7,
        13,
        17,
        18
      ],
      "contributing_edge_ids": [
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 20,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        7,
        13,
        17,
        18
      ],
      "contributing_edge_ids": [
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 20,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        7,
        13,
        17,
        18
      ],
      "contributing_edge_ids": [
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 20,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        23,
        32,
        36,
        104,
        115,
        130,
        144,
        184,
        469
      ],
      "contributing_edge_ids": [
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 20,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 72,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": 115,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 20,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 165,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:20:23",
        "reference:20:32",
        "reference:20:36",
        "reference:20:104",
        "reference:20:115",
        "reference:20:130",
        "reference:20:144",
        "reference:20:184",
        "reference:20:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 43,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 21,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 21,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 21,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 21,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        23,
        28,
        29,
        31,
        32,
        34,
        36,
        104,
        110,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:21:23",
        "reference:21:28",
        "reference:21:29",
        "reference:21:31",
        "reference:21:32",
        "reference:21:34",
        "reference:21:36",
        "reference:21:104",
        "reference:21:110",
        "reference:21:115",
        "reference:21:130",
        "reference:21:144",
        "reference:21:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 21,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 66,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        34,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        100,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        204,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:21:23",
        "reference:21:28",
        "reference:21:29",
        "reference:21:31",
        "reference:21:32",
        "reference:21:34",
        "reference:21:36",
        "reference:21:104",
        "reference:21:110",
        "reference:21:115",
        "reference:21:130",
        "reference:21:144",
        "reference:21:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:34:39",
        "reference:34:40",
        "reference:34:66",
        "reference:34:96",
        "reference:34:100",
        "reference:34:103",
        "reference:34:184",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": 131,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 21,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 162,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        34,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        100,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        122,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:21:23",
        "reference:21:28",
        "reference:21:29",
        "reference:21:31",
        "reference:21:32",
        "reference:21:34",
        "reference:21:36",
        "reference:21:104",
        "reference:21:110",
        "reference:21:115",
        "reference:21:130",
        "reference:21:144",
        "reference:21:469",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:34:39",
        "reference:34:40",
        "reference:34:66",
        "reference:34:96",
        "reference:34:100",
        "reference:34:103",
        "reference:34:184",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:120:133",
        "reference:120:145",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 43,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 22,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 22,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 22,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 22,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        23
      ],
      "contributing_edge_ids": [
        "reference:22:23"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 22,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        104,
        115,
        130,
        144,
        177,
        184,
        204,
        398,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:22:23",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 22,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 80,
      "contributing_pr_ids": [
        23,
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        217,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        396,
        398,
        433,
        469,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:22:23",
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:398:396",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 23,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        19,
        20,
        21,
        22
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 23,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        17,
        18,
        19,
        20,
        21,
        22
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 23,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        17,
        18,
        19,
        20,
        21,
        22
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 23,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        25,
        28,
        29,
        30,
        31,
        32,
        36,
        104,
        115,
        130,
        144,
        177,
        184,
        204,
        398,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 23,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 79,
      "contributing_pr_ids": [
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        217,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        396,
        398,
        433,
        469,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:398:396",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": 123,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 23,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 168,
      "contributing_pr_ids": [
        25,
        28,
        29,
        30,
        31,
        32,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        241,
        244,
        246,
        249,
        251,
        256,
        257,
        260,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:23:25",
        "reference:23:28",
        "reference:23:29",
        "reference:23:30",
        "reference:23:31",
        "reference:23:32",
        "reference:23:36",
        "reference:23:104",
        "reference:23:115",
        "reference:23:130",
        "reference:23:144",
        "reference:23:177",
        "reference:23:184",
        "reference:23:204",
        "reference:23:398",
        "reference:23:469",
        "reference:23:585",
        "reference:25:29",
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:217:221",
        "reference:224:230",
        "reference:224:246",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 43,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 24,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        10
      ],
      "contributing_edge_ids": [
        "reference:10:24"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 24,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        7,
        10
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 24,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        7,
        10
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 24,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        29,
        32,
        36,
        104,
        110,
        115,
        130,
        144,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:24:29",
        "reference:24:32",
        "reference:24:36",
        "reference:24:104",
        "reference:24:110",
        "reference:24:115",
        "reference:24:130",
        "reference:24:144",
        "reference:24:184",
        "reference:24:433",
        "reference:24:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 24,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 83,
      "contributing_pr_ids": [
        29,
        31,
        32,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:24:29",
        "reference:24:32",
        "reference:24:36",
        "reference:24:104",
        "reference:24:110",
        "reference:24:115",
        "reference:24:130",
        "reference:24:144",
        "reference:24:184",
        "reference:24:433",
        "reference:24:469",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 26,
      "round_2_sum_neighbor_degree": 125,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 24,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 205,
      "contributing_pr_ids": [
        29,
        31,
        32,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        122,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:24:29",
        "reference:24:32",
        "reference:24:36",
        "reference:24:104",
        "reference:24:110",
        "reference:24:115",
        "reference:24:130",
        "reference:24:144",
        "reference:24:184",
        "reference:24:433",
        "reference:24:469",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:120:133",
        "reference:120:145",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 46,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 25,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        23
      ],
      "contributing_edge_ids": [
        "reference:23:25"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 25,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        19,
        20,
        21,
        22,
        23
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:23:25"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 25,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        17,
        18,
        19,
        20,
        21,
        22,
        23
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:23:25"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 25,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        29
      ],
      "contributing_edge_ids": [
        "reference:25:29"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 25,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        29,
        31,
        33,
        36,
        66,
        96,
        104,
        110,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:25:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 25,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        29,
        31,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:25:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 26,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 26,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 26,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 26,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:26:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 26,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:26:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 26,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:26:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 27,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 27,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 27,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 27,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        29
      ],
      "contributing_edge_ids": [
        "reference:27:29"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 27,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        29,
        31,
        33,
        36,
        66,
        96,
        104,
        110,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:27:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 27,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        29,
        31,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:27:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 28,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        21,
        23
      ],
      "contributing_edge_ids": [
        "reference:21:28",
        "reference:23:28"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 28,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        19,
        20,
        21,
        22,
        23
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:21:28",
        "reference:23:28"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 28,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        17,
        18,
        19,
        20,
        21,
        22,
        23
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:21:28",
        "reference:23:28"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 28,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        29
      ],
      "contributing_edge_ids": [
        "reference:28:29"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 28,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        29,
        31,
        33,
        36,
        66,
        96,
        104,
        110,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 28,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        29,
        31,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:28:29",
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 29,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        18,
        21,
        23,
        24,
        25,
        27,
        28
      ],
      "contributing_edge_ids": [
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 29,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 29,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 29,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        31,
        33,
        36,
        66,
        96,
        104,
        110,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 29,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        31,
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        96,
        99,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": 91,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 29,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 154,
      "contributing_pr_ids": [
        31,
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        99,
        103,
        104,
        108,
        109,
        110,
        111,
        112,
        114,
        115,
        119,
        120,
        121,
        122,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:29:31",
        "reference:29:33",
        "reference:29:36",
        "reference:29:66",
        "reference:29:96",
        "reference:29:104",
        "reference:29:110",
        "reference:29:115",
        "reference:29:130",
        "reference:29:144",
        "reference:29:469",
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:120:133",
        "reference:120:145",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 42,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 30,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        23
      ],
      "contributing_edge_ids": [
        "reference:23:30"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 30,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        19,
        20,
        21,
        22,
        23
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:23:30"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 30,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        17,
        18,
        19,
        20,
        21,
        22,
        23
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:23:30"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 30,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 30,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 30,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 31,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        21,
        23,
        29
      ],
      "contributing_edge_ids": [
        "reference:21:31",
        "reference:23:31",
        "reference:29:31"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 31,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 31,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 31,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        33,
        36,
        104,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 31,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        33,
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": 78,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 31,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 148,
      "contributing_pr_ids": [
        33,
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:31:33",
        "reference:31:36",
        "reference:31:104",
        "reference:31:115",
        "reference:31:130",
        "reference:31:144",
        "reference:31:469",
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 41,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 32,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 32,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 32,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 32,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        36,
        39,
        40,
        104,
        115,
        130,
        144,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 32,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 79,
      "contributing_pr_ids": [
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        66,
        74,
        90,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        226,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 26,
      "round_2_sum_neighbor_degree": 103,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 32,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 198,
      "contributing_pr_ids": [
        36,
        39,
        40,
        49,
        50,
        51,
        52,
        54,
        55,
        56,
        59,
        66,
        72,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:32:36",
        "reference:32:39",
        "reference:32:40",
        "reference:32:104",
        "reference:32:115",
        "reference:32:130",
        "reference:32:144",
        "reference:32:184",
        "reference:32:433",
        "reference:32:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 44,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 33,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        29,
        31
      ],
      "contributing_edge_ids": [
        "reference:29:33",
        "reference:31:33"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 33,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        18,
        21,
        23,
        24,
        25,
        27,
        28,
        29,
        31
      ],
      "contributing_edge_ids": [
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:29:33",
        "reference:31:33"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 33,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:29:33",
        "reference:31:33"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 33,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        36,
        104,
        115,
        130,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 33,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        36,
        39,
        40,
        51,
        54,
        66,
        74,
        99,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 72,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 33,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 147,
      "contributing_pr_ids": [
        36,
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:33:36",
        "reference:33:104",
        "reference:33:115",
        "reference:33:130",
        "reference:33:144",
        "reference:33:469",
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 41,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 34,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        21
      ],
      "contributing_edge_ids": [
        "reference:21:34"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 34,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        21
      ],
      "contributing_edge_ids": [
        "reference:21:34"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 34,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        21
      ],
      "contributing_edge_ids": [
        "reference:21:34"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 34,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        39,
        40,
        66,
        96,
        100,
        103,
        184
      ],
      "contributing_edge_ids": [
        "reference:34:39",
        "reference:34:40",
        "reference:34:66",
        "reference:34:96",
        "reference:34:100",
        "reference:34:103",
        "reference:34:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 34,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        39,
        40,
        49,
        50,
        66,
        74,
        90,
        96,
        100,
        103,
        184,
        187,
        191,
        193,
        194,
        198,
        199,
        202,
        204,
        206,
        208,
        224,
        225,
        226,
        229,
        246,
        304,
        327
      ],
      "contributing_edge_ids": [
        "reference:34:39",
        "reference:34:40",
        "reference:34:66",
        "reference:34:96",
        "reference:34:100",
        "reference:34:103",
        "reference:34:184",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 34,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 70,
      "contributing_pr_ids": [
        39,
        40,
        49,
        50,
        52,
        66,
        72,
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        96,
        100,
        103,
        184,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        213,
        216,
        217,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        276,
        277,
        285,
        304,
        309,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:34:39",
        "reference:34:40",
        "reference:34:66",
        "reference:34:96",
        "reference:34:100",
        "reference:34:103",
        "reference:34:184",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:304:309",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 35,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 35,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 35,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 35,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:35:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 35,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:35:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 35,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:35:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 36,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 36,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 40,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 36,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 36,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        39,
        40,
        51,
        54,
        66,
        99,
        104,
        115,
        130,
        141,
        144,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 36,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 82,
      "contributing_pr_ids": [
        39,
        40,
        49,
        50,
        51,
        54,
        55,
        56,
        59,
        66,
        74,
        90,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        226,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:99:103",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 27,
      "round_2_sum_neighbor_degree": 97,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 36,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 202,
      "contributing_pr_ids": [
        39,
        40,
        49,
        50,
        51,
        52,
        54,
        55,
        56,
        58,
        59,
        60,
        66,
        71,
        72,
        74,
        76,
        77,
        78,
        79,
        81,
        84,
        87,
        88,
        89,
        90,
        91,
        92,
        94,
        99,
        103,
        104,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        226,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:36:39",
        "reference:36:40",
        "reference:36:51",
        "reference:36:54",
        "reference:36:66",
        "reference:36:99",
        "reference:36:104",
        "reference:36:115",
        "reference:36:130",
        "reference:36:141",
        "reference:36:144",
        "reference:36:184",
        "reference:36:433",
        "reference:36:469",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52",
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:103:74",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 44,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 37,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 37,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 37,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 37,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        39
      ],
      "contributing_edge_ids": [
        "reference:37:39"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 37,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        39,
        40,
        90
      ],
      "contributing_edge_ids": [
        "reference:37:39",
        "reference:39:40",
        "reference:39:90"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 37,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        39,
        40,
        49,
        50,
        90,
        226
      ],
      "contributing_edge_ids": [
        "reference:37:39",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 38,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 38,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 38,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 38,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        39,
        40
      ],
      "contributing_edge_ids": [
        "reference:38:39",
        "reference:38:40"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 38,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        39,
        40,
        49,
        50,
        90,
        226
      ],
      "contributing_edge_ids": [
        "reference:38:39",
        "reference:38:40",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 38,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        39,
        40,
        49,
        50,
        52,
        66,
        72,
        90,
        226
      ],
      "contributing_edge_ids": [
        "reference:38:39",
        "reference:38:40",
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 39,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        32,
        34,
        36,
        37,
        38
      ],
      "contributing_edge_ids": [
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 39,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 33,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 39,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 39,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        40,
        90
      ],
      "contributing_edge_ids": [
        "reference:39:40",
        "reference:39:90"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 39,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        40,
        49,
        50,
        90,
        226
      ],
      "contributing_edge_ids": [
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 39,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        40,
        49,
        50,
        52,
        66,
        72,
        90,
        226
      ],
      "contributing_edge_ids": [
        "reference:39:40",
        "reference:39:90",
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 40,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        32,
        34,
        36,
        38,
        39
      ],
      "contributing_edge_ids": [
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 40,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38,
        39
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39",
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 38,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 40,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38,
        39
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39",
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 40,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        49,
        50,
        226
      ],
      "contributing_edge_ids": [
        "reference:40:49",
        "reference:40:50",
        "reference:40:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 40,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        49,
        50,
        52,
        66,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 40,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        49,
        50,
        52,
        66,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:40:49",
        "reference:40:50",
        "reference:40:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 41,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 41,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 41,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 41,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        50,
        66,
        72,
        99,
        226
      ],
      "contributing_edge_ids": [
        "reference:41:50",
        "reference:41:66",
        "reference:41:72",
        "reference:41:99",
        "reference:41:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 41,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        50,
        52,
        66,
        72,
        99,
        103,
        226
      ],
      "contributing_edge_ids": [
        "reference:41:50",
        "reference:41:66",
        "reference:41:72",
        "reference:41:99",
        "reference:41:226",
        "reference:50:52",
        "reference:99:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 41,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        50,
        52,
        66,
        72,
        74,
        99,
        103,
        226
      ],
      "contributing_edge_ids": [
        "reference:41:50",
        "reference:41:66",
        "reference:41:72",
        "reference:41:99",
        "reference:41:226",
        "reference:50:52",
        "reference:99:103",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 42,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 42,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 42,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 42,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 42,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 42,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 43,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 43,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 43,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 43,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        50,
        59,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:43:50",
        "reference:43:59",
        "reference:43:72",
        "reference:43:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 43,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        50,
        52,
        59,
        66,
        71,
        72,
        77,
        78,
        79,
        84,
        88,
        91,
        226
      ],
      "contributing_edge_ids": [
        "reference:43:50",
        "reference:43:59",
        "reference:43:72",
        "reference:43:226",
        "reference:50:52",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 43,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        50,
        52,
        59,
        64,
        66,
        71,
        72,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141,
        226
      ],
      "contributing_edge_ids": [
        "reference:43:50",
        "reference:43:59",
        "reference:43:72",
        "reference:43:226",
        "reference:50:52",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 44,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 44,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 44,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 44,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        45,
        50,
        59,
        66,
        99,
        109
      ],
      "contributing_edge_ids": [
        "reference:44:45",
        "reference:44:50",
        "reference:44:59",
        "reference:44:66",
        "reference:44:99",
        "reference:44:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 44,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        45,
        50,
        52,
        59,
        66,
        71,
        74,
        77,
        78,
        79,
        84,
        88,
        91,
        99,
        103,
        109
      ],
      "contributing_edge_ids": [
        "reference:44:45",
        "reference:44:50",
        "reference:44:59",
        "reference:44:66",
        "reference:44:99",
        "reference:44:109",
        "reference:45:66",
        "reference:50:52",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:99:103",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 44,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        45,
        50,
        52,
        59,
        64,
        66,
        71,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        99,
        103,
        109,
        141
      ],
      "contributing_edge_ids": [
        "reference:44:45",
        "reference:44:50",
        "reference:44:59",
        "reference:44:66",
        "reference:44:99",
        "reference:44:109",
        "reference:45:66",
        "reference:50:52",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:99:103",
        "reference:103:74",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 45,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        44,
        46
      ],
      "contributing_edge_ids": [
        "reference:44:45",
        "reference:46:45"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 45,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        44,
        46
      ],
      "contributing_edge_ids": [
        "reference:44:45",
        "reference:46:45"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 45,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        44,
        46
      ],
      "contributing_edge_ids": [
        "reference:44:45",
        "reference:46:45"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 45,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:45:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 45,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:45:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 45,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        66
      ],
      "contributing_edge_ids": [
        "reference:45:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 46,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 46,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 46,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 46,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        45
      ],
      "contributing_edge_ids": [
        "reference:46:45"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 46,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        45,
        66
      ],
      "contributing_edge_ids": [
        "reference:45:66",
        "reference:46:45"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 46,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        45,
        66
      ],
      "contributing_edge_ids": [
        "reference:45:66",
        "reference:46:45"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 47,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 47,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 47,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 47,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        49,
        50
      ],
      "contributing_edge_ids": [
        "reference:47:49",
        "reference:47:50"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 47,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        49,
        50,
        52,
        66,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:47:49",
        "reference:47:50",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 47,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        49,
        50,
        52,
        66,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:47:49",
        "reference:47:50",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 48,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 48,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 48,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 48,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        49,
        50,
        52,
        55,
        57,
        72,
        92,
        226
      ],
      "contributing_edge_ids": [
        "reference:48:49",
        "reference:48:50",
        "reference:48:52",
        "reference:48:55",
        "reference:48:57",
        "reference:48:72",
        "reference:48:92",
        "reference:48:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 48,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        49,
        50,
        52,
        55,
        57,
        58,
        60,
        61,
        63,
        66,
        68,
        71,
        72,
        76,
        77,
        78,
        79,
        81,
        84,
        88,
        91,
        92,
        109,
        175,
        226
      ],
      "contributing_edge_ids": [
        "reference:48:49",
        "reference:48:50",
        "reference:48:52",
        "reference:48:55",
        "reference:48:57",
        "reference:48:72",
        "reference:48:92",
        "reference:48:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52",
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:57:58",
        "reference:57:60",
        "reference:57:61",
        "reference:57:63",
        "reference:57:66",
        "reference:57:68",
        "reference:57:71",
        "reference:57:76",
        "reference:57:77",
        "reference:57:78",
        "reference:57:79",
        "reference:57:81",
        "reference:57:84",
        "reference:57:88",
        "reference:57:91",
        "reference:57:175"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 25,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 48,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        49,
        50,
        52,
        55,
        57,
        58,
        59,
        60,
        61,
        63,
        64,
        66,
        68,
        69,
        71,
        72,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        109,
        141,
        175,
        176,
        179,
        180,
        181,
        182,
        186,
        189,
        196,
        200,
        226
      ],
      "contributing_edge_ids": [
        "reference:48:49",
        "reference:48:50",
        "reference:48:52",
        "reference:48:55",
        "reference:48:57",
        "reference:48:72",
        "reference:48:92",
        "reference:48:226",
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52",
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:57:58",
        "reference:57:60",
        "reference:57:61",
        "reference:57:63",
        "reference:57:66",
        "reference:57:68",
        "reference:57:71",
        "reference:57:76",
        "reference:57:77",
        "reference:57:78",
        "reference:57:79",
        "reference:57:81",
        "reference:57:84",
        "reference:57:88",
        "reference:57:91",
        "reference:57:175",
        "reference:58:59",
        "reference:58:60",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:61:68",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:109:74",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 49,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        40,
        47,
        48
      ],
      "contributing_edge_ids": [
        "reference:40:49",
        "reference:47:49",
        "reference:48:49"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 49,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        32,
        34,
        36,
        38,
        39,
        40,
        47,
        48
      ],
      "contributing_edge_ids": [
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 49,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38,
        39,
        40,
        47,
        48
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39",
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 49,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        50,
        66,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 49,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        50,
        52,
        66,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 49,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        50,
        52,
        66,
        72,
        226
      ],
      "contributing_edge_ids": [
        "reference:49:50",
        "reference:49:66",
        "reference:49:72",
        "reference:49:226",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 50,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        40,
        41,
        43,
        44,
        47,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:40:50",
        "reference:41:50",
        "reference:43:50",
        "reference:44:50",
        "reference:47:50",
        "reference:48:50",
        "reference:49:50"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 50,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        32,
        34,
        36,
        38,
        39,
        40,
        41,
        43,
        44,
        47,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:40:50",
        "reference:41:50",
        "reference:43:50",
        "reference:44:50",
        "reference:47:50",
        "reference:48:50",
        "reference:49:50"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 50,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38,
        39,
        40,
        41,
        43,
        44,
        47,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39",
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:40:50",
        "reference:41:50",
        "reference:43:50",
        "reference:44:50",
        "reference:47:50",
        "reference:48:50",
        "reference:49:50"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 50,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        52
      ],
      "contributing_edge_ids": [
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 50,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        52
      ],
      "contributing_edge_ids": [
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 50,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        52
      ],
      "contributing_edge_ids": [
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 51,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        36
      ],
      "contributing_edge_ids": [
        "reference:36:51"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 51,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:51"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 51,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:51"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 51,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        56,
        59,
        66
      ],
      "contributing_edge_ids": [
        "reference:51:56",
        "reference:51:59",
        "reference:51:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 51,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        56,
        59,
        66,
        71,
        77,
        78,
        79,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 51,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        56,
        59,
        64,
        66,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:51:56",
        "reference:51:59",
        "reference:51:66",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 52,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        48,
        50
      ],
      "contributing_edge_ids": [
        "reference:48:52",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 52,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        40,
        41,
        43,
        44,
        47,
        48,
        49,
        50
      ],
      "contributing_edge_ids": [
        "reference:40:50",
        "reference:41:50",
        "reference:43:50",
        "reference:44:50",
        "reference:47:50",
        "reference:48:50",
        "reference:49:50",
        "reference:48:52",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 52,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        32,
        34,
        36,
        38,
        39,
        40,
        41,
        43,
        44,
        47,
        48,
        49,
        50
      ],
      "contributing_edge_ids": [
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:40:50",
        "reference:41:50",
        "reference:43:50",
        "reference:44:50",
        "reference:47:50",
        "reference:48:50",
        "reference:49:50",
        "reference:48:52",
        "reference:50:52"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 52,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 52,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 52,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 53,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 53,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 53,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 53,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        54,
        55,
        56,
        57,
        59,
        66
      ],
      "contributing_edge_ids": [
        "reference:53:54",
        "reference:53:55",
        "reference:53:56",
        "reference:53:57",
        "reference:53:59",
        "reference:53:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 53,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        54,
        55,
        56,
        57,
        58,
        59,
        60,
        61,
        63,
        66,
        68,
        71,
        76,
        77,
        78,
        79,
        81,
        84,
        88,
        91,
        109,
        175
      ],
      "contributing_edge_ids": [
        "reference:53:54",
        "reference:53:55",
        "reference:53:56",
        "reference:53:57",
        "reference:53:59",
        "reference:53:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:57:58",
        "reference:57:60",
        "reference:57:61",
        "reference:57:63",
        "reference:57:66",
        "reference:57:68",
        "reference:57:71",
        "reference:57:76",
        "reference:57:77",
        "reference:57:78",
        "reference:57:79",
        "reference:57:81",
        "reference:57:84",
        "reference:57:88",
        "reference:57:91",
        "reference:57:175",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 31,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 53,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        54,
        55,
        56,
        57,
        58,
        59,
        60,
        61,
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        109,
        141,
        175,
        176,
        179,
        180,
        181,
        182,
        186,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:53:54",
        "reference:53:55",
        "reference:53:56",
        "reference:53:57",
        "reference:53:59",
        "reference:53:66",
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:57:58",
        "reference:57:60",
        "reference:57:61",
        "reference:57:63",
        "reference:57:66",
        "reference:57:68",
        "reference:57:71",
        "reference:57:76",
        "reference:57:77",
        "reference:57:78",
        "reference:57:79",
        "reference:57:81",
        "reference:57:84",
        "reference:57:88",
        "reference:57:91",
        "reference:57:175",
        "reference:58:59",
        "reference:58:60",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:61:68",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:109:74",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 54,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        36,
        53
      ],
      "contributing_edge_ids": [
        "reference:36:54",
        "reference:53:54"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 54,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        53
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:54",
        "reference:53:54"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 54,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        53
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:54",
        "reference:53:54"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 54,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        55,
        56,
        59
      ],
      "contributing_edge_ids": [
        "reference:54:55",
        "reference:54:56",
        "reference:54:59"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 54,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        55,
        56,
        58,
        59,
        60,
        66,
        71,
        77,
        78,
        79,
        84,
        88,
        91,
        109
      ],
      "contributing_edge_ids": [
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 54,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        55,
        56,
        58,
        59,
        60,
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        109,
        141
      ],
      "contributing_edge_ids": [
        "reference:54:55",
        "reference:54:56",
        "reference:54:59",
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:58:59",
        "reference:58:60",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 55,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        48,
        53,
        54
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 55,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        36,
        48,
        53,
        54
      ],
      "contributing_edge_ids": [
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 55,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        54
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 55,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        58,
        60,
        66,
        109
      ],
      "contributing_edge_ids": [
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 55,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        58,
        59,
        60,
        63,
        66,
        68,
        69,
        71,
        74,
        76,
        77,
        79,
        84,
        88,
        91,
        109
      ],
      "contributing_edge_ids": [
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:58:59",
        "reference:58:60",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 55,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        58,
        59,
        60,
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        109,
        141
      ],
      "contributing_edge_ids": [
        "reference:55:58",
        "reference:55:60",
        "reference:55:66",
        "reference:55:109",
        "reference:58:59",
        "reference:58:60",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 56,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        51,
        53,
        54
      ],
      "contributing_edge_ids": [
        "reference:51:56",
        "reference:53:56",
        "reference:54:56"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 56,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        36,
        51,
        53,
        54
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:51:56",
        "reference:53:56",
        "reference:54:56"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 56,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        51,
        53,
        54
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:51:56",
        "reference:53:56",
        "reference:54:56"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 56,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 56,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 56,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 57,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        48,
        53
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 57,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        48,
        53
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 57,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        48,
        53
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 57,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        58,
        60,
        61,
        63,
        66,
        68,
        71,
        76,
        77,
        78,
        79,
        81,
        84,
        88,
        91,
        175
      ],
      "contributing_edge_ids": [
        "reference:57:58",
        "reference:57:60",
        "reference:57:61",
        "reference:57:63",
        "reference:57:66",
        "reference:57:68",
        "reference:57:71",
        "reference:57:76",
        "reference:57:77",
        "reference:57:78",
        "reference:57:79",
        "reference:57:81",
        "reference:57:84",
        "reference:57:88",
        "reference:57:91",
        "reference:57:175"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 57,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        58,
        59,
        60,
        61,
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141,
        175,
        176,
        179,
        180,
        181,
        182,
        186,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:57:58",
        "reference:57:60",
        "reference:57:61",
        "reference:57:63",
        "reference:57:66",
        "reference:57:68",
        "reference:57:71",
        "reference:57:76",
        "reference:57:77",
        "reference:57:78",
        "reference:57:79",
        "reference:57:81",
        "reference:57:84",
        "reference:57:88",
        "reference:57:91",
        "reference:57:175",
        "reference:58:59",
        "reference:58:60",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:61:68",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 72,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 57,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 96,
      "contributing_pr_ids": [
        58,
        59,
        60,
        61,
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        175,
        176,
        178,
        179,
        180,
        181,
        182,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        511,
        513,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:57:58",
        "reference:57:60",
        "reference:57:61",
        "reference:57:63",
        "reference:57:66",
        "reference:57:68",
        "reference:57:71",
        "reference:57:76",
        "reference:57:77",
        "reference:57:78",
        "reference:57:79",
        "reference:57:81",
        "reference:57:84",
        "reference:57:88",
        "reference:57:91",
        "reference:57:175",
        "reference:58:59",
        "reference:58:60",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:61:68",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 58,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        55,
        57
      ],
      "contributing_edge_ids": [
        "reference:55:58",
        "reference:57:58"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 58,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        48,
        53,
        54,
        55,
        57
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 58,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        36,
        48,
        53,
        54,
        55,
        57
      ],
      "contributing_edge_ids": [
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 58,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        59,
        60
      ],
      "contributing_edge_ids": [
        "reference:58:59",
        "reference:58:60"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 58,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        59,
        60,
        63,
        66,
        68,
        69,
        71,
        76,
        77,
        78,
        79,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:58:59",
        "reference:58:60",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 58,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        59,
        60,
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:58:59",
        "reference:58:60",
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 59,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        43,
        44,
        51,
        53,
        54,
        58
      ],
      "contributing_edge_ids": [
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 59,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        36,
        43,
        44,
        51,
        53,
        54,
        55,
        57,
        58
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 59,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 59,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        66,
        71,
        77,
        78,
        79,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 59,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        64,
        66,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 59,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        64,
        66,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:59:66",
        "reference:59:71",
        "reference:59:77",
        "reference:59:78",
        "reference:59:79",
        "reference:59:84",
        "reference:59:88",
        "reference:59:91",
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 60,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        55,
        57,
        58
      ],
      "contributing_edge_ids": [
        "reference:55:60",
        "reference:57:60",
        "reference:58:60"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 60,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        48,
        53,
        54,
        55,
        57,
        58
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 60,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        36,
        48,
        53,
        54,
        55,
        57,
        58
      ],
      "contributing_edge_ids": [
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 60,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        63,
        66,
        68,
        69,
        71,
        76,
        77,
        79,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 60,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 51,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 60,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        63,
        64,
        66,
        68,
        69,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:60:63",
        "reference:60:66",
        "reference:60:68",
        "reference:60:69",
        "reference:60:71",
        "reference:60:76",
        "reference:60:77",
        "reference:60:79",
        "reference:60:84",
        "reference:60:88",
        "reference:60:91",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 61,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        57,
        62
      ],
      "contributing_edge_ids": [
        "reference:57:61",
        "reference:62:61"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 61,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        48,
        53,
        57,
        62
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:57:61",
        "reference:62:61"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 61,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        48,
        53,
        57,
        62
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:57:61",
        "reference:62:61"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 61,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        68
      ],
      "contributing_edge_ids": [
        "reference:61:68"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 61,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        64,
        68,
        71,
        76,
        79,
        81,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:61:68",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 61,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        64,
        68,
        71,
        73,
        75,
        76,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:61:68",
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 62,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 62,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 62,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 62,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        61,
        63,
        68,
        70,
        71,
        76,
        77,
        78,
        79,
        81,
        84,
        88,
        91,
        99,
        115,
        130,
        133,
        144,
        469
      ],
      "contributing_edge_ids": [
        "reference:62:61",
        "reference:62:63",
        "reference:62:68",
        "reference:62:70",
        "reference:62:71",
        "reference:62:76",
        "reference:62:77",
        "reference:62:78",
        "reference:62:79",
        "reference:62:81",
        "reference:62:84",
        "reference:62:88",
        "reference:62:91",
        "reference:62:99",
        "reference:62:115",
        "reference:62:130",
        "reference:62:133",
        "reference:62:144",
        "reference:62:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 62,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        61,
        63,
        64,
        68,
        70,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        99,
        103,
        115,
        129,
        130,
        131,
        133,
        135,
        136,
        139,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:61:68",
        "reference:62:61",
        "reference:62:63",
        "reference:62:68",
        "reference:62:70",
        "reference:62:71",
        "reference:62:76",
        "reference:62:77",
        "reference:62:78",
        "reference:62:79",
        "reference:62:81",
        "reference:62:84",
        "reference:62:88",
        "reference:62:91",
        "reference:62:99",
        "reference:62:115",
        "reference:62:130",
        "reference:62:133",
        "reference:62:144",
        "reference:62:469",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:70:75",
        "reference:70:76",
        "reference:70:77",
        "reference:70:79",
        "reference:70:81",
        "reference:70:84",
        "reference:70:88",
        "reference:70:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:99:103",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:133:145",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": 99,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 62,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 149,
      "contributing_pr_ids": [
        61,
        63,
        64,
        68,
        70,
        71,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        99,
        101,
        103,
        115,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        511,
        513,
        519,
        523,
        526,
        530,
        531,
        535,
        566,
        570,
        573,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:61:68",
        "reference:62:61",
        "reference:62:63",
        "reference:62:68",
        "reference:62:70",
        "reference:62:71",
        "reference:62:76",
        "reference:62:77",
        "reference:62:78",
        "reference:62:79",
        "reference:62:81",
        "reference:62:84",
        "reference:62:88",
        "reference:62:91",
        "reference:62:99",
        "reference:62:115",
        "reference:62:130",
        "reference:62:133",
        "reference:62:144",
        "reference:62:469",
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:70:75",
        "reference:70:76",
        "reference:70:77",
        "reference:70:79",
        "reference:70:81",
        "reference:70:84",
        "reference:70:88",
        "reference:70:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:99:103",
        "reference:103:74",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:139:140",
        "reference:141:186",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 39,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 63,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        57,
        60,
        62
      ],
      "contributing_edge_ids": [
        "reference:57:63",
        "reference:60:63",
        "reference:62:63"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 63,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        48,
        53,
        55,
        57,
        58,
        60,
        62
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 63,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        48,
        53,
        54,
        55,
        57,
        58,
        60,
        62
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 63,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        71,
        77,
        78,
        79,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 63,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        64,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 63,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        64,
        71,
        73,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:63:71",
        "reference:63:77",
        "reference:63:78",
        "reference:63:79",
        "reference:63:84",
        "reference:63:88",
        "reference:63:91",
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 64,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        68,
        69,
        71,
        73,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 64,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        57,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 64,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 64,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        101,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 64,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        101,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 64,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        101,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 65,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 65,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 65,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 65,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        71,
        76,
        77,
        78,
        79,
        81,
        84,
        88,
        91,
        92,
        100
      ],
      "contributing_edge_ids": [
        "reference:65:71",
        "reference:65:76",
        "reference:65:77",
        "reference:65:78",
        "reference:65:79",
        "reference:65:81",
        "reference:65:84",
        "reference:65:88",
        "reference:65:91",
        "reference:65:92",
        "reference:65:100"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 65,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        64,
        71,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        100,
        103,
        141
      ],
      "contributing_edge_ids": [
        "reference:65:71",
        "reference:65:76",
        "reference:65:77",
        "reference:65:78",
        "reference:65:79",
        "reference:65:81",
        "reference:65:84",
        "reference:65:88",
        "reference:65:91",
        "reference:65:92",
        "reference:65:100",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:100:74",
        "reference:100:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 36,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 65,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        64,
        71,
        73,
        74,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        100,
        101,
        103,
        141,
        186,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:65:71",
        "reference:65:76",
        "reference:65:77",
        "reference:65:78",
        "reference:65:79",
        "reference:65:81",
        "reference:65:84",
        "reference:65:88",
        "reference:65:91",
        "reference:65:92",
        "reference:65:100",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 66,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        1,
        2,
        4,
        7,
        26,
        29,
        34,
        35,
        36,
        41,
        44,
        45,
        49,
        51,
        53,
        55,
        57,
        59,
        60
      ],
      "contributing_edge_ids": [
        "reference:1:66",
        "reference:2:66",
        "reference:4:66",
        "reference:7:66",
        "reference:26:66",
        "reference:29:66",
        "reference:34:66",
        "reference:35:66",
        "reference:36:66",
        "reference:41:66",
        "reference:44:66",
        "reference:45:66",
        "reference:49:66",
        "reference:51:66",
        "reference:53:66",
        "reference:55:66",
        "reference:57:66",
        "reference:59:66",
        "reference:60:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 66,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        25,
        26,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        35,
        36,
        40,
        41,
        43,
        44,
        45,
        46,
        47,
        48,
        49,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60
      ],
      "contributing_edge_ids": [
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:44:45",
        "reference:46:45",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:36:51",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:1:66",
        "reference:2:66",
        "reference:4:66",
        "reference:7:66",
        "reference:26:66",
        "reference:29:66",
        "reference:34:66",
        "reference:35:66",
        "reference:36:66",
        "reference:41:66",
        "reference:44:66",
        "reference:45:66",
        "reference:49:66",
        "reference:51:66",
        "reference:53:66",
        "reference:55:66",
        "reference:57:66",
        "reference:59:66",
        "reference:60:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": 46,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 66,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 49,
      "contributing_pr_ids": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        26,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        35,
        36,
        38,
        39,
        40,
        41,
        43,
        44,
        45,
        46,
        47,
        48,
        49,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:44:45",
        "reference:46:45",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:1:66",
        "reference:2:66",
        "reference:4:66",
        "reference:7:66",
        "reference:26:66",
        "reference:29:66",
        "reference:34:66",
        "reference:35:66",
        "reference:36:66",
        "reference:41:66",
        "reference:44:66",
        "reference:45:66",
        "reference:49:66",
        "reference:51:66",
        "reference:53:66",
        "reference:55:66",
        "reference:57:66",
        "reference:59:66",
        "reference:60:66"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 66,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 66,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 66,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 67,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 67,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 67,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 67,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        68,
        71,
        79,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:67:68",
        "reference:67:71",
        "reference:67:79",
        "reference:67:84",
        "reference:67:88",
        "reference:67:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 67,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        64,
        68,
        71,
        73,
        75,
        76,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:67:68",
        "reference:67:71",
        "reference:67:79",
        "reference:67:84",
        "reference:67:88",
        "reference:67:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 33,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 67,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        64,
        68,
        71,
        73,
        75,
        76,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:67:68",
        "reference:67:71",
        "reference:67:79",
        "reference:67:84",
        "reference:67:88",
        "reference:67:91",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 68,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        57,
        60,
        61,
        62,
        67
      ],
      "contributing_edge_ids": [
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 68,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        48,
        53,
        55,
        57,
        58,
        60,
        61,
        62,
        67
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 68,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        48,
        53,
        54,
        55,
        57,
        58,
        60,
        61,
        62,
        67
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 68,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        64,
        71,
        76,
        79,
        81,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 68,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        64,
        71,
        73,
        75,
        76,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 68,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        64,
        71,
        73,
        75,
        76,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:68:64",
        "reference:68:71",
        "reference:68:76",
        "reference:68:79",
        "reference:68:81",
        "reference:68:84",
        "reference:68:88",
        "reference:68:91",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186",
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 69,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        60
      ],
      "contributing_edge_ids": [
        "reference:60:69"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 69,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        55,
        57,
        58,
        60
      ],
      "contributing_edge_ids": [
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:60:69"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 69,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        48,
        53,
        54,
        55,
        57,
        58,
        60
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:60:69"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 69,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        64,
        79,
        81,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 69,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        64,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 69,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        64,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:69:64",
        "reference:69:79",
        "reference:69:81",
        "reference:69:84",
        "reference:69:88",
        "reference:69:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186",
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 70,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        62
      ],
      "contributing_edge_ids": [
        "reference:62:70"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 70,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        62
      ],
      "contributing_edge_ids": [
        "reference:62:70"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 70,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        62
      ],
      "contributing_edge_ids": [
        "reference:62:70"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 70,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        75,
        76,
        77,
        79,
        81,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:70:75",
        "reference:70:76",
        "reference:70:77",
        "reference:70:79",
        "reference:70:81",
        "reference:70:84",
        "reference:70:88",
        "reference:70:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 70,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        64,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:70:75",
        "reference:70:76",
        "reference:70:77",
        "reference:70:79",
        "reference:70:81",
        "reference:70:84",
        "reference:70:88",
        "reference:70:91",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 70,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        64,
        75,
        76,
        77,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:70:75",
        "reference:70:76",
        "reference:70:77",
        "reference:70:79",
        "reference:70:81",
        "reference:70:84",
        "reference:70:88",
        "reference:70:91",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 71,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68
      ],
      "contributing_edge_ids": [
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 71,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 71,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 71,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        64,
        73,
        75,
        76,
        78,
        79,
        81,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 71,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        64,
        73,
        75,
        76,
        78,
        79,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 35,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 71,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        64,
        73,
        75,
        76,
        78,
        79,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:71:64",
        "reference:71:73",
        "reference:71:75",
        "reference:71:76",
        "reference:71:78",
        "reference:71:79",
        "reference:71:81",
        "reference:71:84",
        "reference:71:88",
        "reference:71:91",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186",
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 72,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        41,
        43,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:41:72",
        "reference:43:72",
        "reference:48:72",
        "reference:49:72"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 72,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        40,
        41,
        43,
        47,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:41:72",
        "reference:43:72",
        "reference:48:72",
        "reference:49:72"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 72,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        32,
        34,
        36,
        38,
        39,
        40,
        41,
        43,
        47,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:41:72",
        "reference:43:72",
        "reference:48:72",
        "reference:49:72"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 72,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 72,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 72,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 73,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        71
      ],
      "contributing_edge_ids": [
        "reference:71:73"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 73,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        71
      ],
      "contributing_edge_ids": [
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 73,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        71
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 73,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        64,
        75
      ],
      "contributing_edge_ids": [
        "reference:73:64",
        "reference:73:75"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 73,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        64,
        75,
        76,
        78,
        101,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 73,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        64,
        75,
        76,
        78,
        80,
        81,
        84,
        88,
        91,
        92,
        101,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:73:64",
        "reference:73:75",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 74,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 74,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        44,
        55,
        65,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 33,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 74,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        41,
        44,
        48,
        53,
        54,
        55,
        62,
        65,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:36:99",
        "reference:41:99",
        "reference:44:99",
        "reference:62:99",
        "reference:97:99",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:2:102",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 74,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 74,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        64,
        76,
        77,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 74,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        64,
        76,
        77,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        186,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 75,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        70,
        71,
        73
      ],
      "contributing_edge_ids": [
        "reference:70:75",
        "reference:71:75",
        "reference:73:75"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 75,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        70,
        71,
        73
      ],
      "contributing_edge_ids": [
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 75,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        70,
        71,
        73
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 75,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        76,
        78
      ],
      "contributing_edge_ids": [
        "reference:75:76",
        "reference:75:78"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 75,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        64,
        76,
        78,
        80,
        81,
        84,
        88,
        91,
        92
      ],
      "contributing_edge_ids": [
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 75,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        64,
        76,
        78,
        80,
        81,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        101,
        141,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:75:76",
        "reference:75:78",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 76,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        57,
        60,
        62,
        65,
        68,
        70,
        71,
        74,
        75
      ],
      "contributing_edge_ids": [
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 76,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        48,
        53,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        70,
        71,
        73,
        74,
        75,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 28,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 76,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        70,
        71,
        73,
        74,
        75,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 76,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        64,
        80,
        81,
        92
      ],
      "contributing_edge_ids": [
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 76,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        64,
        80,
        81,
        82,
        92,
        101,
        511,
        519,
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:80:82"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 76,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        64,
        77,
        80,
        81,
        82,
        88,
        91,
        92,
        101,
        511,
        519,
        526,
        530,
        565,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:64:101",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:64:530",
        "reference:64:566",
        "reference:64:570",
        "reference:64:573",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:80:82",
        "reference:82:77",
        "reference:82:88",
        "reference:82:91",
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 77,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        70,
        74,
        82
      ],
      "contributing_edge_ids": [
        "reference:57:77",
        "reference:59:77",
        "reference:60:77",
        "reference:62:77",
        "reference:63:77",
        "reference:65:77",
        "reference:70:77",
        "reference:74:77",
        "reference:82:77"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 77,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        62,
        63,
        65,
        70,
        74,
        80,
        82,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:62:70",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:77",
        "reference:59:77",
        "reference:60:77",
        "reference:62:77",
        "reference:63:77",
        "reference:65:77",
        "reference:70:77",
        "reference:74:77",
        "reference:82:77",
        "reference:80:82"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 77,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        62,
        63,
        65,
        70,
        74,
        76,
        78,
        79,
        80,
        82,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:62:70",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:77",
        "reference:59:77",
        "reference:60:77",
        "reference:62:77",
        "reference:63:77",
        "reference:65:77",
        "reference:70:77",
        "reference:74:77",
        "reference:82:77",
        "reference:76:80",
        "reference:78:80",
        "reference:79:80",
        "reference:80:82",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 77,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        81
      ],
      "contributing_edge_ids": [
        "reference:77:81"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 77,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        81
      ],
      "contributing_edge_ids": [
        "reference:77:81"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 77,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        81
      ],
      "contributing_edge_ids": [
        "reference:77:81"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 78,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        57,
        59,
        62,
        63,
        65,
        71,
        75
      ],
      "contributing_edge_ids": [
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 78,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        57,
        58,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        70,
        71,
        73,
        75
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 78,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        70,
        71,
        73,
        75
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 78,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        80,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 78,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        80,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 78,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        77,
        80,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        94,
        141,
        186
      ],
      "contributing_edge_ids": [
        "reference:78:80",
        "reference:78:84",
        "reference:78:88",
        "reference:78:91",
        "reference:80:82",
        "reference:82:77",
        "reference:82:88",
        "reference:82:91",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 79,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71
      ],
      "contributing_edge_ids": [
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 79,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 29,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 79,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 79,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        80,
        84,
        87,
        88,
        91,
        92
      ],
      "contributing_edge_ids": [
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 79,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        80,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 79,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        77,
        80,
        82,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141,
        186
      ],
      "contributing_edge_ids": [
        "reference:79:80",
        "reference:79:84",
        "reference:79:87",
        "reference:79:88",
        "reference:79:91",
        "reference:79:92",
        "reference:80:82",
        "reference:82:77",
        "reference:82:88",
        "reference:82:91",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 80,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        76,
        78,
        79
      ],
      "contributing_edge_ids": [
        "reference:76:80",
        "reference:78:80",
        "reference:79:80"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 80,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        76,
        78,
        79
      ],
      "contributing_edge_ids": [
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:76:80",
        "reference:78:80",
        "reference:79:80"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 80,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        78,
        79,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:76:80",
        "reference:78:80",
        "reference:79:80"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 80,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        82
      ],
      "contributing_edge_ids": [
        "reference:80:82"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 80,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        77,
        82,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:80:82",
        "reference:82:77",
        "reference:82:88",
        "reference:82:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 80,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        77,
        81,
        82,
        88,
        89,
        91,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:77:81",
        "reference:80:82",
        "reference:82:77",
        "reference:82:88",
        "reference:82:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 81,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        57,
        62,
        65,
        68,
        69,
        70,
        71,
        74,
        76,
        77
      ],
      "contributing_edge_ids": [
        "reference:57:81",
        "reference:62:81",
        "reference:65:81",
        "reference:68:81",
        "reference:69:81",
        "reference:70:81",
        "reference:71:81",
        "reference:74:81",
        "reference:76:81",
        "reference:77:81"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 81,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        48,
        53,
        57,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        76,
        77,
        82,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:57:77",
        "reference:59:77",
        "reference:60:77",
        "reference:62:77",
        "reference:63:77",
        "reference:65:77",
        "reference:70:77",
        "reference:74:77",
        "reference:82:77",
        "reference:57:81",
        "reference:62:81",
        "reference:65:81",
        "reference:68:81",
        "reference:69:81",
        "reference:70:81",
        "reference:71:81",
        "reference:74:81",
        "reference:76:81",
        "reference:77:81"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 41,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 81,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        77,
        80,
        82,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:57:77",
        "reference:59:77",
        "reference:60:77",
        "reference:62:77",
        "reference:63:77",
        "reference:65:77",
        "reference:70:77",
        "reference:74:77",
        "reference:82:77",
        "reference:57:81",
        "reference:62:81",
        "reference:65:81",
        "reference:68:81",
        "reference:69:81",
        "reference:70:81",
        "reference:71:81",
        "reference:74:81",
        "reference:76:81",
        "reference:77:81",
        "reference:80:82",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 81,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 81,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 81,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 82,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        80
      ],
      "contributing_edge_ids": [
        "reference:80:82"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 82,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        76,
        78,
        79,
        80
      ],
      "contributing_edge_ids": [
        "reference:76:80",
        "reference:78:80",
        "reference:79:80",
        "reference:80:82"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 82,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        76,
        78,
        79,
        80
      ],
      "contributing_edge_ids": [
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:76:80",
        "reference:78:80",
        "reference:79:80",
        "reference:80:82"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 82,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        77,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:82:77",
        "reference:82:88",
        "reference:82:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 82,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        77,
        81,
        88,
        89,
        91,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:77:81",
        "reference:82:77",
        "reference:82:88",
        "reference:82:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 82,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        77,
        81,
        88,
        89,
        91,
        94,
        141,
        186
      ],
      "contributing_edge_ids": [
        "reference:77:81",
        "reference:82:77",
        "reference:82:88",
        "reference:82:91",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 83,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 83,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 83,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 83,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 83,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 83,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 84,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79
      ],
      "contributing_edge_ids": [
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 84,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 53,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 84,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        78,
        79,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 84,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        85,
        86,
        87,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 84,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        85,
        86,
        87,
        88,
        89,
        91,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 84,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        85,
        86,
        87,
        88,
        89,
        91,
        94,
        141,
        186
      ],
      "contributing_edge_ids": [
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 85,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        84
      ],
      "contributing_edge_ids": [
        "reference:84:85"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 85,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        84
      ],
      "contributing_edge_ids": [
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:84:85"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 85,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        84,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:84:85"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 85,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        86,
        87
      ],
      "contributing_edge_ids": [
        "reference:85:86",
        "reference:85:87"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 85,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        86,
        87,
        89
      ],
      "contributing_edge_ids": [
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 85,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        86,
        87,
        89
      ],
      "contributing_edge_ids": [
        "reference:85:86",
        "reference:85:87",
        "reference:86:87",
        "reference:87:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 86,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        84,
        85
      ],
      "contributing_edge_ids": [
        "reference:84:86",
        "reference:85:86"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 86,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        84,
        85
      ],
      "contributing_edge_ids": [
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:84:85",
        "reference:84:86",
        "reference:85:86"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 86,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        84,
        85,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:84:85",
        "reference:84:86",
        "reference:85:86"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 86,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        87
      ],
      "contributing_edge_ids": [
        "reference:86:87"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 86,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        87,
        89
      ],
      "contributing_edge_ids": [
        "reference:86:87",
        "reference:87:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 86,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        87,
        89
      ],
      "contributing_edge_ids": [
        "reference:86:87",
        "reference:87:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 87,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        74,
        79,
        84,
        85,
        86
      ],
      "contributing_edge_ids": [
        "reference:74:87",
        "reference:79:87",
        "reference:84:87",
        "reference:85:87",
        "reference:86:87"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 87,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        84,
        85,
        86,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:84:85",
        "reference:84:86",
        "reference:85:86",
        "reference:74:87",
        "reference:79:87",
        "reference:84:87",
        "reference:85:87",
        "reference:86:87"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 34,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 87,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        84,
        85,
        86,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:84:85",
        "reference:84:86",
        "reference:85:86",
        "reference:74:87",
        "reference:79:87",
        "reference:84:87",
        "reference:85:87",
        "reference:86:87",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 87,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        89
      ],
      "contributing_edge_ids": [
        "reference:87:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 87,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        89
      ],
      "contributing_edge_ids": [
        "reference:87:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 87,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        89
      ],
      "contributing_edge_ids": [
        "reference:87:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 88,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        82,
        84
      ],
      "contributing_edge_ids": [
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 88,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        80,
        82,
        84,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:80:82",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 68,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 88,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        78,
        79,
        80,
        82,
        84,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:76:80",
        "reference:78:80",
        "reference:79:80",
        "reference:80:82",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 88,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        89,
        91
      ],
      "contributing_edge_ids": [
        "reference:88:89",
        "reference:88:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 88,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        89,
        91,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 88,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        89,
        91,
        94,
        141,
        186
      ],
      "contributing_edge_ids": [
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 89,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        74,
        87,
        88
      ],
      "contributing_edge_ids": [
        "reference:74:89",
        "reference:87:89",
        "reference:88:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 89,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        82,
        84,
        85,
        86,
        87,
        88,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:74:87",
        "reference:79:87",
        "reference:84:87",
        "reference:85:87",
        "reference:86:87",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88",
        "reference:74:89",
        "reference:87:89",
        "reference:88:89"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 89,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        80,
        82,
        84,
        85,
        86,
        87,
        88,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:80:82",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:84:85",
        "reference:84:86",
        "reference:85:86",
        "reference:74:87",
        "reference:79:87",
        "reference:84:87",
        "reference:85:87",
        "reference:86:87",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88",
        "reference:74:89",
        "reference:87:89",
        "reference:88:89",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 89,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 89,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 89,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 90,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        39
      ],
      "contributing_edge_ids": [
        "reference:39:90"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 90,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        32,
        34,
        36,
        37,
        38,
        39
      ],
      "contributing_edge_ids": [
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39",
        "reference:39:90"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 90,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38,
        39
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39",
        "reference:39:90"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 90,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 90,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 90,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 91,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        82,
        84,
        88
      ],
      "contributing_edge_ids": [
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 91,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        80,
        82,
        84,
        88,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:80:82",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88",
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 84,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 91,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        78,
        79,
        80,
        82,
        84,
        88,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:36:51",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:48:57",
        "reference:53:57",
        "reference:55:58",
        "reference:57:58",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:61",
        "reference:62:61",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:76:80",
        "reference:78:80",
        "reference:79:80",
        "reference:80:82",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88",
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 91,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:91:94",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 91,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        94,
        141,
        186
      ],
      "contributing_edge_ids": [
        "reference:91:94",
        "reference:91:141",
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 91,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        94,
        141,
        180,
        186,
        187,
        191,
        193,
        194,
        204,
        206,
        217,
        235,
        238,
        246,
        264
      ],
      "contributing_edge_ids": [
        "reference:91:94",
        "reference:91:141",
        "reference:141:186",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 92,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        48,
        65,
        74,
        76,
        79
      ],
      "contributing_edge_ids": [
        "reference:48:92",
        "reference:65:92",
        "reference:74:92",
        "reference:76:92",
        "reference:79:92"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 92,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        48,
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        76,
        79,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:48:92",
        "reference:65:92",
        "reference:74:92",
        "reference:76:92",
        "reference:79:92"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 26,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 92,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        79,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:70:75",
        "reference:71:75",
        "reference:73:75",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:48:92",
        "reference:65:92",
        "reference:74:92",
        "reference:76:92",
        "reference:79:92",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 92,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 92,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 92,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 93,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 93,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 93,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 93,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 93,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 93,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 94,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        74,
        91
      ],
      "contributing_edge_ids": [
        "reference:74:94",
        "reference:91:94"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 94,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        82,
        84,
        88,
        91,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91",
        "reference:74:94",
        "reference:91:94"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 94,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        80,
        82,
        84,
        88,
        91,
        97,
        99,
        100,
        102,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:80:82",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88",
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91",
        "reference:74:94",
        "reference:91:94",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 94,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 94,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 94,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 95,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 95,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 95,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 95,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        98
      ],
      "contributing_edge_ids": [
        "reference:95:98"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 95,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        98
      ],
      "contributing_edge_ids": [
        "reference:95:98"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 95,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        98
      ],
      "contributing_edge_ids": [
        "reference:95:98"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 96,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        29,
        34
      ],
      "contributing_edge_ids": [
        "reference:29:96",
        "reference:34:96"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 96,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        18,
        21,
        23,
        24,
        25,
        27,
        28,
        29,
        34
      ],
      "contributing_edge_ids": [
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:34",
        "reference:29:96",
        "reference:34:96"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 96,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        34
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:34",
        "reference:29:96",
        "reference:34:96"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 96,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 96,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 96,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 97,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 97,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 97,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 97,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        99,
        100,
        103,
        115,
        130,
        137,
        144,
        145,
        146,
        147,
        150,
        177,
        184,
        469
      ],
      "contributing_edge_ids": [
        "reference:97:99",
        "reference:97:100",
        "reference:97:103",
        "reference:97:115",
        "reference:97:130",
        "reference:97:137",
        "reference:97:144",
        "reference:97:145",
        "reference:97:146",
        "reference:97:147",
        "reference:97:150",
        "reference:97:177",
        "reference:97:184",
        "reference:97:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 97,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        74,
        99,
        100,
        103,
        115,
        129,
        130,
        131,
        135,
        136,
        137,
        138,
        139,
        144,
        145,
        146,
        147,
        148,
        150,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:97:99",
        "reference:97:100",
        "reference:97:103",
        "reference:97:115",
        "reference:97:130",
        "reference:97:137",
        "reference:97:144",
        "reference:97:145",
        "reference:97:146",
        "reference:97:147",
        "reference:97:150",
        "reference:97:177",
        "reference:97:184",
        "reference:97:469",
        "reference:99:103",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:137:138",
        "reference:137:139",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:147:146",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": 62,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 97,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 137,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94,
        99,
        100,
        103,
        115,
        129,
        130,
        131,
        135,
        136,
        137,
        138,
        139,
        140,
        144,
        145,
        146,
        147,
        148,
        150,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:97:99",
        "reference:97:100",
        "reference:97:103",
        "reference:97:115",
        "reference:97:130",
        "reference:97:137",
        "reference:97:144",
        "reference:97:145",
        "reference:97:146",
        "reference:97:147",
        "reference:97:150",
        "reference:97:177",
        "reference:97:184",
        "reference:97:469",
        "reference:99:103",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:137:138",
        "reference:137:139",
        "reference:138:139",
        "reference:139:140",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:147:146",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 38,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 98,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        95
      ],
      "contributing_edge_ids": [
        "reference:95:98"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 98,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        95
      ],
      "contributing_edge_ids": [
        "reference:95:98"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 98,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        95
      ],
      "contributing_edge_ids": [
        "reference:95:98"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 98,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 98,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 98,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 99,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        36,
        41,
        44,
        62,
        97
      ],
      "contributing_edge_ids": [
        "reference:36:99",
        "reference:41:99",
        "reference:44:99",
        "reference:62:99",
        "reference:97:99"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 99,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        41,
        44,
        62,
        97
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:99",
        "reference:41:99",
        "reference:44:99",
        "reference:62:99",
        "reference:97:99"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 99,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        41,
        44,
        62,
        97
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:99",
        "reference:41:99",
        "reference:44:99",
        "reference:62:99",
        "reference:97:99"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 99,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        103
      ],
      "contributing_edge_ids": [
        "reference:99:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 99,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        74,
        103
      ],
      "contributing_edge_ids": [
        "reference:99:103",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 99,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94,
        103
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:99:103",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 100,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        34,
        65,
        97
      ],
      "contributing_edge_ids": [
        "reference:34:100",
        "reference:65:100",
        "reference:97:100"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 100,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        21,
        34,
        65,
        97
      ],
      "contributing_edge_ids": [
        "reference:21:34",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 100,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        21,
        34,
        65,
        97
      ],
      "contributing_edge_ids": [
        "reference:21:34",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 100,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        74,
        103
      ],
      "contributing_edge_ids": [
        "reference:100:74",
        "reference:100:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 100,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94,
        103
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 100,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        64,
        74,
        76,
        77,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        103,
        141
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:100:74",
        "reference:100:103",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 101,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        64
      ],
      "contributing_edge_ids": [
        "reference:64:101"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 101,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:64:101"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 101,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:64:101"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 101,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 101,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 101,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 102,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        2
      ],
      "contributing_edge_ids": [
        "reference:2:102"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 102,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        2
      ],
      "contributing_edge_ids": [
        "reference:2:102"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 102,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        2
      ],
      "contributing_edge_ids": [
        "reference:2:102"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 102,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        103
      ],
      "contributing_edge_ids": [
        "reference:102:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 102,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        74,
        103
      ],
      "contributing_edge_ids": [
        "reference:102:103",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 102,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94,
        103
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:102:103",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 103,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        34,
        97,
        99,
        100,
        102
      ],
      "contributing_edge_ids": [
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 103,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        2,
        21,
        34,
        36,
        41,
        44,
        62,
        65,
        97,
        99,
        100,
        102
      ],
      "contributing_edge_ids": [
        "reference:21:34",
        "reference:36:99",
        "reference:41:99",
        "reference:44:99",
        "reference:62:99",
        "reference:97:99",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:2:102",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 103,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        41,
        44,
        62,
        65,
        97,
        99,
        100,
        102
      ],
      "contributing_edge_ids": [
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:99",
        "reference:41:99",
        "reference:44:99",
        "reference:62:99",
        "reference:97:99",
        "reference:34:100",
        "reference:65:100",
        "reference:97:100",
        "reference:2:102",
        "reference:34:103",
        "reference:97:103",
        "reference:99:103",
        "reference:100:103",
        "reference:102:103"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 103,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        74
      ],
      "contributing_edge_ids": [
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 103,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 103,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        64,
        74,
        76,
        77,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:103:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 104,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 104,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 58,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 104,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 104,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        74,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        130,
        131,
        133,
        136,
        138,
        144,
        145,
        146,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 104,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 76,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:138:139",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": 90,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 104,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 184,
      "contributing_pr_ids": [
        64,
        74,
        76,
        77,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        108,
        109,
        111,
        112,
        115,
        119,
        121,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        141,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:104:74",
        "reference:104:108",
        "reference:104:109",
        "reference:104:111",
        "reference:104:112",
        "reference:104:115",
        "reference:104:119",
        "reference:104:121",
        "reference:104:130",
        "reference:104:131",
        "reference:104:133",
        "reference:104:136",
        "reference:104:138",
        "reference:104:144",
        "reference:104:145",
        "reference:104:146",
        "reference:104:184",
        "reference:104:433",
        "reference:104:469",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74",
        "reference:111:133",
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 40,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 105,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 105,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 105,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 105,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 105,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 105,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 106,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 106,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 106,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 106,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 106,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 106,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 107,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 107,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 107,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 107,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        74,
        109,
        121
      ],
      "contributing_edge_ids": [
        "reference:107:74",
        "reference:107:109",
        "reference:107:121"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 107,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94,
        109,
        121
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:107:74",
        "reference:107:109",
        "reference:107:121",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 107,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        64,
        74,
        76,
        77,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        109,
        121,
        141
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:107:74",
        "reference:107:109",
        "reference:107:121",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 108,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        104
      ],
      "contributing_edge_ids": [
        "reference:104:108"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 108,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        104
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 108,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        104
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 108,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        74,
        109
      ],
      "contributing_edge_ids": [
        "reference:108:74",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 108,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94,
        109
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 108,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        64,
        74,
        76,
        77,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        109,
        141
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:108:74",
        "reference:108:109",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 109,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        44,
        55,
        104,
        107,
        108
      ],
      "contributing_edge_ids": [
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 109,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        44,
        48,
        53,
        54,
        55,
        104,
        107,
        108
      ],
      "contributing_edge_ids": [
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 109,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        44,
        48,
        53,
        54,
        55,
        104,
        107,
        108
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:36:54",
        "reference:53:54",
        "reference:48:55",
        "reference:53:55",
        "reference:54:55",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:108",
        "reference:44:109",
        "reference:55:109",
        "reference:104:109",
        "reference:107:109",
        "reference:108:109"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 109,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        74
      ],
      "contributing_edge_ids": [
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 109,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        74,
        76,
        77,
        81,
        84,
        87,
        88,
        89,
        91,
        92,
        94
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 109,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        64,
        74,
        76,
        77,
        80,
        81,
        84,
        85,
        86,
        87,
        88,
        89,
        91,
        92,
        94,
        141
      ],
      "contributing_edge_ids": [
        "reference:74:76",
        "reference:74:77",
        "reference:74:81",
        "reference:74:84",
        "reference:74:87",
        "reference:74:88",
        "reference:74:89",
        "reference:74:91",
        "reference:74:92",
        "reference:74:94",
        "reference:76:64",
        "reference:76:80",
        "reference:76:81",
        "reference:76:92",
        "reference:77:81",
        "reference:84:85",
        "reference:84:86",
        "reference:84:87",
        "reference:84:88",
        "reference:84:91",
        "reference:87:89",
        "reference:88:89",
        "reference:88:91",
        "reference:91:94",
        "reference:91:141",
        "reference:109:74"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 110,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        21,
        24,
        29
      ],
      "contributing_edge_ids": [
        "reference:21:110",
        "reference:24:110",
        "reference:29:110"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 110,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        10,
        18,
        21,
        23,
        24,
        25,
        27,
        28,
        29
      ],
      "contributing_edge_ids": [
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 110,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 110,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        111,
        114,
        120,
        129,
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 110,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        111,
        114,
        120,
        122,
        129,
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:120:133",
        "reference:120:145",
        "reference:129:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 110,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        111,
        114,
        120,
        122,
        123,
        129,
        133,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:110:111",
        "reference:110:114",
        "reference:110:120",
        "reference:110:129",
        "reference:110:133",
        "reference:110:145",
        "reference:111:133",
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:120:133",
        "reference:120:145",
        "reference:122:123",
        "reference:122:140",
        "reference:129:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 111,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        104,
        110
      ],
      "contributing_edge_ids": [
        "reference:104:111",
        "reference:110:111"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 111,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        104,
        110
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:104:111",
        "reference:110:111"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 111,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        104,
        110
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:104:111",
        "reference:110:111"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 111,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        133
      ],
      "contributing_edge_ids": [
        "reference:111:133"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 111,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:111:133",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 111,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:111:133",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 112,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        104
      ],
      "contributing_edge_ids": [
        "reference:104:112"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 112,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        104
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:112"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 112,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        104
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:112"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 112,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 112,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 112,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 113,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 113,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 113,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 113,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:113:133",
        "reference:113:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 113,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:113:133",
        "reference:113:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 113,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:113:133",
        "reference:113:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 114,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        110,
        117,
        128
      ],
      "contributing_edge_ids": [
        "reference:110:114",
        "reference:117:114",
        "reference:128:114"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 114,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        21,
        24,
        29,
        110,
        117,
        128
      ],
      "contributing_edge_ids": [
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 114,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        10,
        18,
        21,
        23,
        24,
        25,
        27,
        28,
        29,
        110,
        117,
        128
      ],
      "contributing_edge_ids": [
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 114,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        120,
        122,
        129,
        133
      ],
      "contributing_edge_ids": [
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 114,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        120,
        122,
        123,
        129,
        133,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:120:133",
        "reference:120:145",
        "reference:122:123",
        "reference:122:140",
        "reference:129:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 114,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        120,
        122,
        123,
        129,
        133,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:120:133",
        "reference:120:145",
        "reference:122:123",
        "reference:122:140",
        "reference:129:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 115,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104
      ],
      "contributing_edge_ids": [
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 115,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 77,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 115,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 115,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        130,
        144,
        146,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 115,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        129,
        130,
        131,
        135,
        136,
        139,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": 59,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 115,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 160,
      "contributing_pr_ids": [
        129,
        130,
        131,
        135,
        136,
        138,
        139,
        140,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:115:130",
        "reference:115:144",
        "reference:115:146",
        "reference:115:184",
        "reference:115:433",
        "reference:115:469",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:139:140",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 36,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 116,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 116,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 116,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 116,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        118
      ],
      "contributing_edge_ids": [
        "reference:116:118"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 116,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        118,
        122,
        123,
        126,
        133
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:118:122",
        "reference:118:123",
        "reference:118:126",
        "reference:118:133"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 116,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        118,
        122,
        123,
        126,
        133,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:118:122",
        "reference:118:123",
        "reference:118:126",
        "reference:118:133",
        "reference:122:123",
        "reference:122:140",
        "reference:126:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 117,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 117,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 117,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 117,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        114,
        118,
        125,
        126,
        129,
        130,
        131,
        133,
        142,
        143,
        144,
        145,
        146,
        168,
        177,
        184,
        225,
        469
      ],
      "contributing_edge_ids": [
        "reference:117:114",
        "reference:117:118",
        "reference:117:125",
        "reference:117:126",
        "reference:117:129",
        "reference:117:130",
        "reference:117:131",
        "reference:117:133",
        "reference:117:142",
        "reference:117:143",
        "reference:117:144",
        "reference:117:145",
        "reference:117:146",
        "reference:117:168",
        "reference:117:177",
        "reference:117:184",
        "reference:117:225",
        "reference:117:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 117,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 71,
      "contributing_pr_ids": [
        114,
        118,
        120,
        122,
        123,
        125,
        126,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        142,
        143,
        144,
        145,
        146,
        148,
        168,
        170,
        171,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        195,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        208,
        212,
        223,
        224,
        225,
        229,
        233,
        246,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        387,
        398,
        433,
        469,
        585
      ],
      "contributing_edge_ids": [
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:117:114",
        "reference:117:118",
        "reference:117:125",
        "reference:117:126",
        "reference:117:129",
        "reference:117:130",
        "reference:117:131",
        "reference:117:133",
        "reference:117:142",
        "reference:117:143",
        "reference:117:144",
        "reference:117:145",
        "reference:117:146",
        "reference:117:168",
        "reference:117:177",
        "reference:117:184",
        "reference:117:225",
        "reference:117:469",
        "reference:118:122",
        "reference:118:123",
        "reference:118:126",
        "reference:118:133",
        "reference:125:126",
        "reference:125:131",
        "reference:125:140",
        "reference:125:145",
        "reference:126:145",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:168:170",
        "reference:168:171",
        "reference:168:176",
        "reference:168:178",
        "reference:168:179",
        "reference:168:180",
        "reference:168:181",
        "reference:168:182",
        "reference:168:184",
        "reference:168:185",
        "reference:168:186",
        "reference:168:187",
        "reference:168:189",
        "reference:168:191",
        "reference:168:192",
        "reference:168:193",
        "reference:168:194",
        "reference:168:195",
        "reference:168:196",
        "reference:168:198",
        "reference:168:199",
        "reference:168:200",
        "reference:168:202",
        "reference:168:205",
        "reference:168:212",
        "reference:168:223",
        "reference:168:233",
        "reference:168:246",
        "reference:168:276",
        "reference:168:285",
        "reference:168:289",
        "reference:168:296",
        "reference:168:304",
        "reference:168:315",
        "reference:168:327",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": 108,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 117,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 146,
      "contributing_pr_ids": [
        114,
        118,
        120,
        122,
        123,
        125,
        126,
        129,
        130,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        142,
        143,
        144,
        145,
        146,
        148,
        168,
        170,
        171,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        195,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        228,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        241,
        244,
        245,
        246,
        249,
        250,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        469,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:117:114",
        "reference:117:118",
        "reference:117:125",
        "reference:117:126",
        "reference:117:129",
        "reference:117:130",
        "reference:117:131",
        "reference:117:133",
        "reference:117:142",
        "reference:117:143",
        "reference:117:144",
        "reference:117:145",
        "reference:117:146",
        "reference:117:168",
        "reference:117:177",
        "reference:117:184",
        "reference:117:225",
        "reference:117:469",
        "reference:118:122",
        "reference:118:123",
        "reference:118:126",
        "reference:118:133",
        "reference:120:133",
        "reference:120:145",
        "reference:122:123",
        "reference:122:140",
        "reference:125:126",
        "reference:125:131",
        "reference:125:140",
        "reference:125:145",
        "reference:126:145",
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:168:170",
        "reference:168:171",
        "reference:168:176",
        "reference:168:178",
        "reference:168:179",
        "reference:168:180",
        "reference:168:181",
        "reference:168:182",
        "reference:168:184",
        "reference:168:185",
        "reference:168:186",
        "reference:168:187",
        "reference:168:189",
        "reference:168:191",
        "reference:168:192",
        "reference:168:193",
        "reference:168:194",
        "reference:168:195",
        "reference:168:196",
        "reference:168:198",
        "reference:168:199",
        "reference:168:200",
        "reference:168:202",
        "reference:168:205",
        "reference:168:212",
        "reference:168:223",
        "reference:168:233",
        "reference:168:246",
        "reference:168:276",
        "reference:168:285",
        "reference:168:289",
        "reference:168:296",
        "reference:168:304",
        "reference:168:315",
        "reference:168:327",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:192:193",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:195:228",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:212:213",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 39,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 118,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        116,
        117
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:117:118"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 118,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        116,
        117
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:117:118"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 118,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        116,
        117
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:117:118"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 118,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        122,
        123,
        126,
        133
      ],
      "contributing_edge_ids": [
        "reference:118:122",
        "reference:118:123",
        "reference:118:126",
        "reference:118:133"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 118,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        122,
        123,
        126,
        133,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:118:122",
        "reference:118:123",
        "reference:118:126",
        "reference:118:133",
        "reference:122:123",
        "reference:122:140",
        "reference:126:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 118,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        122,
        123,
        126,
        133,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:118:122",
        "reference:118:123",
        "reference:118:126",
        "reference:118:133",
        "reference:122:123",
        "reference:122:140",
        "reference:126:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 119,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        104
      ],
      "contributing_edge_ids": [
        "reference:104:119"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 119,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        104
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:119"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 119,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        104
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:119"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 119,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 119,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 119,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 120,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        110,
        114
      ],
      "contributing_edge_ids": [
        "reference:110:120",
        "reference:114:120"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 120,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        21,
        24,
        29,
        110,
        114,
        117,
        128
      ],
      "contributing_edge_ids": [
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:110:120",
        "reference:114:120"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 120,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        10,
        18,
        21,
        23,
        24,
        25,
        27,
        28,
        29,
        110,
        114,
        117,
        128
      ],
      "contributing_edge_ids": [
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:110:120",
        "reference:114:120"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 120,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:120:133",
        "reference:120:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 120,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:120:133",
        "reference:120:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 120,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        133,
        145
      ],
      "contributing_edge_ids": [
        "reference:120:133",
        "reference:120:145",
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 121,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        104,
        107
      ],
      "contributing_edge_ids": [
        "reference:104:121",
        "reference:107:121"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 121,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        104,
        107
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:121",
        "reference:107:121"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 121,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        104,
        107
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:121",
        "reference:107:121"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 121,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 121,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 121,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 122,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        114,
        118
      ],
      "contributing_edge_ids": [
        "reference:114:122",
        "reference:118:122"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 122,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        110,
        114,
        116,
        117,
        118,
        128
      ],
      "contributing_edge_ids": [
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:116:118",
        "reference:117:118",
        "reference:114:122",
        "reference:118:122"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 122,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        21,
        24,
        29,
        110,
        114,
        116,
        117,
        118,
        128
      ],
      "contributing_edge_ids": [
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:116:118",
        "reference:117:118",
        "reference:114:122",
        "reference:118:122"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 122,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        123,
        140
      ],
      "contributing_edge_ids": [
        "reference:122:123",
        "reference:122:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 122,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        123,
        140
      ],
      "contributing_edge_ids": [
        "reference:122:123",
        "reference:122:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 122,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        123,
        140
      ],
      "contributing_edge_ids": [
        "reference:122:123",
        "reference:122:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 123,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        118,
        122
      ],
      "contributing_edge_ids": [
        "reference:118:123",
        "reference:122:123"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 123,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        114,
        116,
        117,
        118,
        122
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:117:118",
        "reference:114:122",
        "reference:118:122",
        "reference:118:123",
        "reference:122:123"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 123,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        110,
        114,
        116,
        117,
        118,
        122,
        128
      ],
      "contributing_edge_ids": [
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:116:118",
        "reference:117:118",
        "reference:114:122",
        "reference:118:122",
        "reference:118:123",
        "reference:122:123"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 123,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 123,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 123,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 124,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 124,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 124,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 124,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        127,
        129,
        131,
        135,
        139,
        145,
        184
      ],
      "contributing_edge_ids": [
        "reference:124:127",
        "reference:124:129",
        "reference:124:131",
        "reference:124:135",
        "reference:124:139",
        "reference:124:145",
        "reference:124:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 124,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        127,
        129,
        131,
        135,
        136,
        138,
        139,
        140,
        145,
        182,
        184,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        304,
        327
      ],
      "contributing_edge_ids": [
        "reference:124:127",
        "reference:124:129",
        "reference:124:131",
        "reference:124:135",
        "reference:124:139",
        "reference:124:145",
        "reference:124:184",
        "reference:129:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:139:140",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 28,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 124,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 70,
      "contributing_pr_ids": [
        127,
        129,
        131,
        135,
        136,
        138,
        139,
        140,
        145,
        182,
        184,
        185,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        237,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        276,
        277,
        285,
        289,
        296,
        304,
        309,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        513
      ],
      "contributing_edge_ids": [
        "reference:124:127",
        "reference:124:129",
        "reference:124:131",
        "reference:124:135",
        "reference:124:139",
        "reference:124:145",
        "reference:124:184",
        "reference:129:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:304:309",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 125,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:125"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 125,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:125"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 125,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:125"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 125,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        126,
        131,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:125:126",
        "reference:125:131",
        "reference:125:140",
        "reference:125:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 125,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        126,
        129,
        131,
        135,
        136,
        138,
        140,
        145,
        182,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:125:126",
        "reference:125:131",
        "reference:125:140",
        "reference:125:145",
        "reference:126:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 125,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        126,
        129,
        131,
        135,
        136,
        138,
        139,
        140,
        145,
        182,
        185,
        187,
        189,
        191,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        237,
        244,
        246,
        249,
        251,
        262,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:125:126",
        "reference:125:131",
        "reference:125:140",
        "reference:125:145",
        "reference:126:145",
        "reference:129:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:138:139",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 126,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        117,
        118,
        125
      ],
      "contributing_edge_ids": [
        "reference:117:126",
        "reference:118:126",
        "reference:125:126"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 126,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        116,
        117,
        118,
        125
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:117:118",
        "reference:117:125",
        "reference:117:126",
        "reference:118:126",
        "reference:125:126"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 126,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        116,
        117,
        118,
        125
      ],
      "contributing_edge_ids": [
        "reference:116:118",
        "reference:117:118",
        "reference:117:125",
        "reference:117:126",
        "reference:118:126",
        "reference:125:126"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 126,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:126:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 126,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:126:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 126,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:126:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 127,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        124
      ],
      "contributing_edge_ids": [
        "reference:124:127"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 127,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        124
      ],
      "contributing_edge_ids": [
        "reference:124:127"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 127,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        124
      ],
      "contributing_edge_ids": [
        "reference:124:127"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 127,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 127,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 127,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 128,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 128,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 128,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 128,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        114,
        129,
        131,
        144,
        145,
        146,
        177,
        184
      ],
      "contributing_edge_ids": [
        "reference:128:114",
        "reference:128:129",
        "reference:128:131",
        "reference:128:144",
        "reference:128:145",
        "reference:128:146",
        "reference:128:177",
        "reference:128:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 128,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        114,
        120,
        122,
        129,
        131,
        133,
        135,
        136,
        138,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        276,
        304,
        315,
        325,
        327,
        387,
        398,
        433,
        585
      ],
      "contributing_edge_ids": [
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:128:114",
        "reference:128:129",
        "reference:128:131",
        "reference:128:144",
        "reference:128:145",
        "reference:128:146",
        "reference:128:177",
        "reference:128:184",
        "reference:129:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 52,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 128,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 122,
      "contributing_pr_ids": [
        114,
        120,
        122,
        123,
        129,
        131,
        133,
        135,
        136,
        138,
        139,
        140,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:114:120",
        "reference:114:122",
        "reference:114:129",
        "reference:114:133",
        "reference:120:133",
        "reference:120:145",
        "reference:122:123",
        "reference:122:140",
        "reference:128:114",
        "reference:128:129",
        "reference:128:131",
        "reference:128:144",
        "reference:128:145",
        "reference:128:146",
        "reference:128:177",
        "reference:128:184",
        "reference:129:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:133:145",
        "reference:135:136",
        "reference:138:139",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 33,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 129,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        110,
        114,
        117,
        124,
        128,
        130,
        131
      ],
      "contributing_edge_ids": [
        "reference:110:129",
        "reference:114:129",
        "reference:117:129",
        "reference:124:129",
        "reference:128:129",
        "reference:130:129",
        "reference:131:129"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 129,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        110,
        114,
        115,
        117,
        124,
        125,
        128,
        130,
        131
      ],
      "contributing_edge_ids": [
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:110:129",
        "reference:114:129",
        "reference:117:129",
        "reference:124:129",
        "reference:128:129",
        "reference:130:129",
        "reference:131:129",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 36,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 129,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        110,
        114,
        115,
        117,
        124,
        125,
        128,
        130,
        131
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:110:129",
        "reference:114:129",
        "reference:117:129",
        "reference:124:129",
        "reference:128:129",
        "reference:130:129",
        "reference:131:129",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 129,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:129:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 129,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:129:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 129,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:129:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 130,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117
      ],
      "contributing_edge_ids": [
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 130,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 99,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 130,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 130,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        129,
        131,
        135,
        136,
        139,
        144,
        145,
        146,
        184,
        433,
        469
      ],
      "contributing_edge_ids": [
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 130,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        129,
        131,
        135,
        136,
        138,
        139,
        140,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        275,
        276,
        304,
        315,
        325,
        327,
        376,
        387,
        398,
        433,
        437,
        451,
        454,
        456,
        469,
        499,
        523,
        531,
        535,
        585
      ],
      "contributing_edge_ids": [
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:139:140",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": 60,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 130,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 159,
      "contributing_pr_ids": [
        129,
        131,
        135,
        136,
        138,
        139,
        140,
        144,
        145,
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        305,
        307,
        308,
        309,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        426,
        433,
        436,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:129:145",
        "reference:130:129",
        "reference:130:131",
        "reference:130:135",
        "reference:130:136",
        "reference:130:139",
        "reference:130:144",
        "reference:130:145",
        "reference:130:146",
        "reference:130:184",
        "reference:130:433",
        "reference:130:469",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 36,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 131,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        104,
        117,
        124,
        125,
        128,
        130
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 131,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 44,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 131,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 131,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        129,
        135,
        136,
        138,
        145,
        182,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 131,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        129,
        135,
        136,
        138,
        139,
        145,
        182,
        185,
        187,
        189,
        191,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        237,
        244,
        246,
        249,
        251,
        262,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:129:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:138:139",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": 50,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 131,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 117,
      "contributing_pr_ids": [
        129,
        135,
        136,
        138,
        139,
        140,
        145,
        182,
        185,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        262,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        384,
        393,
        394,
        398,
        399,
        402,
        436,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:129:145",
        "reference:131:129",
        "reference:131:135",
        "reference:131:136",
        "reference:131:138",
        "reference:131:145",
        "reference:131:182",
        "reference:131:189",
        "reference:131:196",
        "reference:131:200",
        "reference:135:136",
        "reference:138:139",
        "reference:139:140",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 29,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 132,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 132,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 132,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 132,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        135,
        136,
        139,
        145
      ],
      "contributing_edge_ids": [
        "reference:132:135",
        "reference:132:136",
        "reference:132:139",
        "reference:132:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 132,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        135,
        136,
        139,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:132:135",
        "reference:132:136",
        "reference:132:139",
        "reference:132:145",
        "reference:135:136",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 132,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        135,
        136,
        139,
        140,
        145
      ],
      "contributing_edge_ids": [
        "reference:132:135",
        "reference:132:136",
        "reference:132:139",
        "reference:132:145",
        "reference:135:136",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 133,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        62,
        104,
        110,
        111,
        113,
        114,
        117,
        118,
        120
      ],
      "contributing_edge_ids": [
        "reference:62:133",
        "reference:104:133",
        "reference:110:133",
        "reference:111:133",
        "reference:113:133",
        "reference:114:133",
        "reference:117:133",
        "reference:118:133",
        "reference:120:133"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 133,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        104,
        110,
        111,
        113,
        114,
        116,
        117,
        118,
        120,
        128
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:104:111",
        "reference:110:111",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:116:118",
        "reference:117:118",
        "reference:110:120",
        "reference:114:120",
        "reference:62:133",
        "reference:104:133",
        "reference:110:133",
        "reference:111:133",
        "reference:113:133",
        "reference:114:133",
        "reference:117:133",
        "reference:118:133",
        "reference:120:133"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 31,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 133,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        104,
        110,
        111,
        113,
        114,
        116,
        117,
        118,
        120,
        128
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:104:111",
        "reference:110:111",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:116:118",
        "reference:117:118",
        "reference:110:120",
        "reference:114:120",
        "reference:62:133",
        "reference:104:133",
        "reference:110:133",
        "reference:111:133",
        "reference:113:133",
        "reference:114:133",
        "reference:117:133",
        "reference:118:133",
        "reference:120:133"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 133,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 133,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 133,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        145
      ],
      "contributing_edge_ids": [
        "reference:133:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 134,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 134,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 134,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 134,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        135,
        145
      ],
      "contributing_edge_ids": [
        "reference:134:135",
        "reference:134:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 134,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        135,
        136,
        145
      ],
      "contributing_edge_ids": [
        "reference:134:135",
        "reference:134:145",
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 134,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        135,
        136,
        145
      ],
      "contributing_edge_ids": [
        "reference:134:135",
        "reference:134:145",
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 135,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        124,
        130,
        131,
        132,
        134
      ],
      "contributing_edge_ids": [
        "reference:124:135",
        "reference:130:135",
        "reference:131:135",
        "reference:132:135",
        "reference:134:135"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 135,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        132,
        134
      ],
      "contributing_edge_ids": [
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:124:135",
        "reference:130:135",
        "reference:131:135",
        "reference:132:135",
        "reference:134:135"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 135,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        132,
        134
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:124:135",
        "reference:130:135",
        "reference:131:135",
        "reference:132:135",
        "reference:134:135"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 135,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        136
      ],
      "contributing_edge_ids": [
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 135,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        136
      ],
      "contributing_edge_ids": [
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 135,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        136
      ],
      "contributing_edge_ids": [
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 136,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        104,
        130,
        131,
        132,
        135
      ],
      "contributing_edge_ids": [
        "reference:104:136",
        "reference:130:136",
        "reference:131:136",
        "reference:132:136",
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 136,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        132,
        134,
        135
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:124:135",
        "reference:130:135",
        "reference:131:135",
        "reference:132:135",
        "reference:134:135",
        "reference:104:136",
        "reference:130:136",
        "reference:131:136",
        "reference:132:136",
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 54,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 136,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        132,
        134,
        135
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:124:135",
        "reference:130:135",
        "reference:131:135",
        "reference:132:135",
        "reference:134:135",
        "reference:104:136",
        "reference:130:136",
        "reference:131:136",
        "reference:132:136",
        "reference:135:136"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 136,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 136,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 136,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 137,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:137"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 137,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:137"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 137,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:137"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 137,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        138,
        139
      ],
      "contributing_edge_ids": [
        "reference:137:138",
        "reference:137:139"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 137,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        138,
        139,
        140
      ],
      "contributing_edge_ids": [
        "reference:137:138",
        "reference:137:139",
        "reference:138:139",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 137,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        138,
        139,
        140
      ],
      "contributing_edge_ids": [
        "reference:137:138",
        "reference:137:139",
        "reference:138:139",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 138,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        104,
        131,
        137
      ],
      "contributing_edge_ids": [
        "reference:104:138",
        "reference:131:138",
        "reference:137:138"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 138,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        97,
        104,
        117,
        124,
        125,
        128,
        130,
        131,
        137
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:97:137",
        "reference:104:138",
        "reference:131:138",
        "reference:137:138"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 26,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 138,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        137
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:97:137",
        "reference:104:138",
        "reference:131:138",
        "reference:137:138"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 138,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        139
      ],
      "contributing_edge_ids": [
        "reference:138:139"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 138,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        139,
        140
      ],
      "contributing_edge_ids": [
        "reference:138:139",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 138,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        139,
        140
      ],
      "contributing_edge_ids": [
        "reference:138:139",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 139,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        124,
        130,
        132,
        137,
        138
      ],
      "contributing_edge_ids": [
        "reference:124:139",
        "reference:130:139",
        "reference:132:139",
        "reference:137:139",
        "reference:138:139"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 139,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        130,
        131,
        132,
        137,
        138
      ],
      "contributing_edge_ids": [
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:97:137",
        "reference:104:138",
        "reference:131:138",
        "reference:137:138",
        "reference:124:139",
        "reference:130:139",
        "reference:132:139",
        "reference:137:139",
        "reference:138:139"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 28,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 139,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        132,
        137,
        138
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:97:137",
        "reference:104:138",
        "reference:131:138",
        "reference:137:138",
        "reference:124:139",
        "reference:130:139",
        "reference:132:139",
        "reference:137:139",
        "reference:138:139"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 139,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        140
      ],
      "contributing_edge_ids": [
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 139,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        140
      ],
      "contributing_edge_ids": [
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 139,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        140
      ],
      "contributing_edge_ids": [
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 140,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        122,
        125,
        139
      ],
      "contributing_edge_ids": [
        "reference:122:140",
        "reference:125:140",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 140,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        114,
        117,
        118,
        122,
        124,
        125,
        130,
        132,
        137,
        138,
        139
      ],
      "contributing_edge_ids": [
        "reference:114:122",
        "reference:118:122",
        "reference:117:125",
        "reference:124:139",
        "reference:130:139",
        "reference:132:139",
        "reference:137:139",
        "reference:138:139",
        "reference:122:140",
        "reference:125:140",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 140,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        110,
        114,
        115,
        116,
        117,
        118,
        122,
        124,
        125,
        128,
        130,
        131,
        132,
        137,
        138,
        139
      ],
      "contributing_edge_ids": [
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:116:118",
        "reference:117:118",
        "reference:114:122",
        "reference:118:122",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:97:137",
        "reference:104:138",
        "reference:131:138",
        "reference:137:138",
        "reference:124:139",
        "reference:130:139",
        "reference:132:139",
        "reference:137:139",
        "reference:138:139",
        "reference:122:140",
        "reference:125:140",
        "reference:139:140"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 140,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 140,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 140,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 141,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        36,
        91
      ],
      "contributing_edge_ids": [
        "reference:36:141",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 141,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        82,
        84,
        88,
        91
      ],
      "contributing_edge_ids": [
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91",
        "reference:36:141",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 35,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 141,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        43,
        44,
        48,
        51,
        53,
        54,
        55,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        75,
        78,
        79,
        80,
        82,
        84,
        88,
        91,
        100,
        103,
        104,
        107,
        108,
        109
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:43:59",
        "reference:44:59",
        "reference:51:59",
        "reference:53:59",
        "reference:54:59",
        "reference:58:59",
        "reference:55:60",
        "reference:57:60",
        "reference:58:60",
        "reference:57:63",
        "reference:60:63",
        "reference:62:63",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:62:70",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:100:74",
        "reference:103:74",
        "reference:104:74",
        "reference:107:74",
        "reference:108:74",
        "reference:109:74",
        "reference:57:78",
        "reference:59:78",
        "reference:62:78",
        "reference:63:78",
        "reference:65:78",
        "reference:71:78",
        "reference:75:78",
        "reference:57:79",
        "reference:59:79",
        "reference:60:79",
        "reference:62:79",
        "reference:63:79",
        "reference:65:79",
        "reference:67:79",
        "reference:68:79",
        "reference:69:79",
        "reference:70:79",
        "reference:71:79",
        "reference:80:82",
        "reference:57:84",
        "reference:59:84",
        "reference:60:84",
        "reference:62:84",
        "reference:63:84",
        "reference:65:84",
        "reference:67:84",
        "reference:68:84",
        "reference:69:84",
        "reference:70:84",
        "reference:71:84",
        "reference:74:84",
        "reference:78:84",
        "reference:79:84",
        "reference:57:88",
        "reference:59:88",
        "reference:60:88",
        "reference:62:88",
        "reference:63:88",
        "reference:65:88",
        "reference:67:88",
        "reference:68:88",
        "reference:69:88",
        "reference:70:88",
        "reference:71:88",
        "reference:74:88",
        "reference:78:88",
        "reference:79:88",
        "reference:82:88",
        "reference:84:88",
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91",
        "reference:36:141",
        "reference:91:141"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 141,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        186
      ],
      "contributing_edge_ids": [
        "reference:141:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 141,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        180,
        186,
        187,
        191,
        193,
        194,
        204,
        206,
        217,
        235,
        238,
        246,
        264
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 141,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        180,
        186,
        187,
        191,
        193,
        194,
        197,
        198,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        217,
        221,
        223,
        224,
        225,
        229,
        233,
        234,
        235,
        238,
        244,
        246,
        247,
        249,
        251,
        253,
        256,
        257,
        264,
        276,
        277,
        285,
        304,
        315,
        325,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:217:221",
        "reference:235:247",
        "reference:235:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 142,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:142"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 142,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:142"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 142,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:142"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 142,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 142,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 142,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 143,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:143"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 143,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:143"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 143,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:143"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 143,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 143,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 143,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 144,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 144,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 123,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 144,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 144,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        146,
        148,
        176,
        177,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        225,
        276,
        315,
        325,
        387,
        398,
        433,
        585
      ],
      "contributing_edge_ids": [
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 144,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 100,
      "contributing_pr_ids": [
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        275,
        276,
        279,
        280,
        282,
        285,
        286,
        289,
        296,
        302,
        304,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        370,
        373,
        376,
        382,
        384,
        387,
        393,
        394,
        396,
        398,
        399,
        402,
        433,
        436,
        437,
        451,
        454,
        456,
        499,
        513,
        523,
        531,
        535,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:387:398",
        "reference:398:396",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 29,
      "round_2_sum_neighbor_degree": 139,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 144,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 194,
      "contributing_pr_ids": [
        146,
        148,
        176,
        177,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        264,
        267,
        268,
        272,
        275,
        276,
        277,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        307,
        308,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        372,
        373,
        375,
        376,
        379,
        382,
        384,
        387,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        426,
        433,
        436,
        437,
        445,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        513,
        523,
        526,
        528,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        581,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        605,
        622
      ],
      "contributing_edge_ids": [
        "reference:144:146",
        "reference:144:148",
        "reference:144:176",
        "reference:144:177",
        "reference:144:178",
        "reference:144:179",
        "reference:144:181",
        "reference:144:182",
        "reference:144:184",
        "reference:144:185",
        "reference:144:186",
        "reference:144:189",
        "reference:144:196",
        "reference:144:200",
        "reference:144:225",
        "reference:144:276",
        "reference:144:315",
        "reference:144:325",
        "reference:144:387",
        "reference:144:398",
        "reference:144:433",
        "reference:144:585",
        "reference:148:146",
        "reference:148:177",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:384:275",
        "reference:384:398",
        "reference:387:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:436:445",
        "reference:436:456",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:513:528",
        "reference:513:581",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 40,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 145,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        97,
        104,
        110,
        113,
        117,
        120,
        124,
        125,
        126,
        128,
        129,
        130,
        131,
        132,
        133,
        134
      ],
      "contributing_edge_ids": [
        "reference:97:145",
        "reference:104:145",
        "reference:110:145",
        "reference:113:145",
        "reference:117:145",
        "reference:120:145",
        "reference:124:145",
        "reference:125:145",
        "reference:126:145",
        "reference:128:145",
        "reference:129:145",
        "reference:130:145",
        "reference:131:145",
        "reference:132:145",
        "reference:133:145",
        "reference:134:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 145,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        110,
        111,
        113,
        114,
        115,
        117,
        118,
        120,
        124,
        125,
        126,
        128,
        129,
        130,
        131,
        132,
        133,
        134
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:110:120",
        "reference:114:120",
        "reference:117:125",
        "reference:117:126",
        "reference:118:126",
        "reference:125:126",
        "reference:110:129",
        "reference:114:129",
        "reference:117:129",
        "reference:124:129",
        "reference:128:129",
        "reference:130:129",
        "reference:131:129",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:62:133",
        "reference:104:133",
        "reference:110:133",
        "reference:111:133",
        "reference:113:133",
        "reference:114:133",
        "reference:117:133",
        "reference:118:133",
        "reference:120:133",
        "reference:97:145",
        "reference:104:145",
        "reference:110:145",
        "reference:113:145",
        "reference:117:145",
        "reference:120:145",
        "reference:124:145",
        "reference:125:145",
        "reference:126:145",
        "reference:128:145",
        "reference:129:145",
        "reference:130:145",
        "reference:131:145",
        "reference:132:145",
        "reference:133:145",
        "reference:134:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 74,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 145,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        110,
        111,
        113,
        114,
        115,
        116,
        117,
        118,
        120,
        124,
        125,
        126,
        128,
        129,
        130,
        131,
        132,
        133,
        134
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:21:110",
        "reference:24:110",
        "reference:29:110",
        "reference:104:111",
        "reference:110:111",
        "reference:110:114",
        "reference:117:114",
        "reference:128:114",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:116:118",
        "reference:117:118",
        "reference:110:120",
        "reference:114:120",
        "reference:117:125",
        "reference:117:126",
        "reference:118:126",
        "reference:125:126",
        "reference:110:129",
        "reference:114:129",
        "reference:117:129",
        "reference:124:129",
        "reference:128:129",
        "reference:130:129",
        "reference:131:129",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:62:133",
        "reference:104:133",
        "reference:110:133",
        "reference:111:133",
        "reference:113:133",
        "reference:114:133",
        "reference:117:133",
        "reference:118:133",
        "reference:120:133",
        "reference:97:145",
        "reference:104:145",
        "reference:110:145",
        "reference:113:145",
        "reference:117:145",
        "reference:120:145",
        "reference:124:145",
        "reference:125:145",
        "reference:126:145",
        "reference:128:145",
        "reference:129:145",
        "reference:130:145",
        "reference:131:145",
        "reference:132:145",
        "reference:133:145",
        "reference:134:145"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 145,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 145,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 145,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 146,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        147,
        148
      ],
      "contributing_edge_ids": [
        "reference:97:146",
        "reference:104:146",
        "reference:115:146",
        "reference:117:146",
        "reference:128:146",
        "reference:130:146",
        "reference:144:146",
        "reference:147:146",
        "reference:148:146"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 146,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        147,
        148
      ],
      "contributing_edge_ids": [
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:97:146",
        "reference:104:146",
        "reference:115:146",
        "reference:117:146",
        "reference:128:146",
        "reference:130:146",
        "reference:144:146",
        "reference:147:146",
        "reference:148:146",
        "reference:97:147",
        "reference:144:148"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 93,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 146,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        147,
        148
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:97:146",
        "reference:104:146",
        "reference:115:146",
        "reference:117:146",
        "reference:128:146",
        "reference:130:146",
        "reference:144:146",
        "reference:147:146",
        "reference:148:146",
        "reference:97:147",
        "reference:144:148"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 146,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 146,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 146,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 147,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:147"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 147,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:147"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 147,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:147"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 147,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        146
      ],
      "contributing_edge_ids": [
        "reference:147:146"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 147,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        146
      ],
      "contributing_edge_ids": [
        "reference:147:146"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 147,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        146
      ],
      "contributing_edge_ids": [
        "reference:147:146"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 148,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        144
      ],
      "contributing_edge_ids": [
        "reference:144:148"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 148,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:148"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 26,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 148,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:148"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 148,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        146,
        177
      ],
      "contributing_edge_ids": [
        "reference:148:146",
        "reference:148:177"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 148,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        146,
        177
      ],
      "contributing_edge_ids": [
        "reference:148:146",
        "reference:148:177"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 148,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        146,
        177
      ],
      "contributing_edge_ids": [
        "reference:148:146",
        "reference:148:177"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 149,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 149,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 149,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 149,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        184
      ],
      "contributing_edge_ids": [
        "reference:149:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 149,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        184,
        187,
        191,
        193,
        194,
        198,
        199,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        304,
        327
      ],
      "contributing_edge_ids": [
        "reference:149:184",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 16,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 149,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        184,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        213,
        216,
        217,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        276,
        277,
        285,
        304,
        309,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:149:184",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:304:309",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 150,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:150"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 150,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:150"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 150,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        97
      ],
      "contributing_edge_ids": [
        "reference:97:150"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 150,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 150,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 150,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 151,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 151,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 151,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 151,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 151,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 151,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 152,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 152,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 152,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 152,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 152,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 152,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 153,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 153,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 153,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 153,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        184
      ],
      "contributing_edge_ids": [
        "reference:153:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 153,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        184,
        187,
        191,
        193,
        194,
        198,
        199,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        304,
        327
      ],
      "contributing_edge_ids": [
        "reference:153:184",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 16,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 153,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        184,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        213,
        216,
        217,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        276,
        277,
        285,
        304,
        309,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:153:184",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:304:309",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 154,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 154,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 154,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 154,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        176,
        179,
        181,
        182,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:154:176",
        "reference:154:179",
        "reference:154:181",
        "reference:154:182",
        "reference:154:189",
        "reference:154:196",
        "reference:154:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 154,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        176,
        178,
        179,
        180,
        181,
        182,
        185,
        186,
        187,
        189,
        191,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        237,
        244,
        246,
        249,
        251,
        262,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:154:176",
        "reference:154:179",
        "reference:154:181",
        "reference:154:182",
        "reference:154:189",
        "reference:154:196",
        "reference:154:200",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": 53,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 154,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 118,
      "contributing_pr_ids": [
        176,
        178,
        179,
        180,
        181,
        182,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        262,
        264,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        384,
        393,
        394,
        398,
        399,
        402,
        436,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:154:176",
        "reference:154:179",
        "reference:154:181",
        "reference:154:182",
        "reference:154:189",
        "reference:154:196",
        "reference:154:200",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 28,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 155,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 155,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 155,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 155,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 155,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 155,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 156,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 156,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 156,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 156,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 156,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 156,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 157,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 157,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 157,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 157,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 157,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 157,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 158,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 158,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 158,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 158,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        177,
        184
      ],
      "contributing_edge_ids": [
        "reference:158:177",
        "reference:158:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 158,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        177,
        184,
        187,
        191,
        193,
        194,
        198,
        199,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        304,
        327
      ],
      "contributing_edge_ids": [
        "reference:158:177",
        "reference:158:184",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 16,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 158,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        177,
        184,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        213,
        216,
        217,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        276,
        277,
        285,
        304,
        309,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:158:177",
        "reference:158:184",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:304:309",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 159,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 159,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 159,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 159,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 159,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 159,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 160,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 160,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 160,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 160,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 160,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 160,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 161,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 161,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 161,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 161,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        162,
        163,
        165,
        167,
        170
      ],
      "contributing_edge_ids": [
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:161:167",
        "reference:161:170"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 161,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        162,
        163,
        165,
        166,
        167,
        170,
        171,
        172,
        175,
        178,
        181,
        182,
        184,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:161:167",
        "reference:161:170",
        "reference:162:165",
        "reference:162:178",
        "reference:162:181",
        "reference:162:182",
        "reference:162:184",
        "reference:162:189",
        "reference:162:196",
        "reference:162:200",
        "reference:163:165",
        "reference:163:166",
        "reference:163:170",
        "reference:163:171",
        "reference:163:172",
        "reference:163:184",
        "reference:165:175",
        "reference:167:178"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 16,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 161,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 66,
      "contributing_pr_ids": [
        162,
        163,
        165,
        166,
        167,
        170,
        171,
        172,
        175,
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        237,
        244,
        246,
        249,
        251,
        262,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:161:167",
        "reference:161:170",
        "reference:162:165",
        "reference:162:178",
        "reference:162:181",
        "reference:162:182",
        "reference:162:184",
        "reference:162:189",
        "reference:162:196",
        "reference:162:200",
        "reference:163:165",
        "reference:163:166",
        "reference:163:170",
        "reference:163:171",
        "reference:163:172",
        "reference:163:184",
        "reference:165:175",
        "reference:166:176",
        "reference:166:178",
        "reference:166:179",
        "reference:166:181",
        "reference:166:182",
        "reference:166:184",
        "reference:166:185",
        "reference:166:186",
        "reference:166:189",
        "reference:166:196",
        "reference:166:200",
        "reference:166:202",
        "reference:167:178",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 22,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 162,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:162"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 162,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:162"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 162,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:162"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 162,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        165,
        178,
        181,
        182,
        184,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:162:165",
        "reference:162:178",
        "reference:162:181",
        "reference:162:182",
        "reference:162:184",
        "reference:162:189",
        "reference:162:196",
        "reference:162:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 162,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        165,
        175,
        178,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        237,
        244,
        246,
        249,
        251,
        262,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:162:165",
        "reference:162:178",
        "reference:162:181",
        "reference:162:182",
        "reference:162:184",
        "reference:162:189",
        "reference:162:196",
        "reference:162:200",
        "reference:165:175",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 68,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 162,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 122,
      "contributing_pr_ids": [
        165,
        175,
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        264,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        384,
        393,
        394,
        398,
        399,
        402,
        436,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:162:165",
        "reference:162:178",
        "reference:162:181",
        "reference:162:182",
        "reference:162:184",
        "reference:162:189",
        "reference:162:196",
        "reference:162:200",
        "reference:165:175",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 29,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 163,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:163"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 163,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:163"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 163,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:163"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 163,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        165,
        166,
        170,
        171,
        172,
        184
      ],
      "contributing_edge_ids": [
        "reference:163:165",
        "reference:163:166",
        "reference:163:170",
        "reference:163:171",
        "reference:163:172",
        "reference:163:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 163,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        165,
        166,
        170,
        171,
        172,
        175,
        176,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        304,
        327
      ],
      "contributing_edge_ids": [
        "reference:163:165",
        "reference:163:166",
        "reference:163:170",
        "reference:163:171",
        "reference:163:172",
        "reference:163:184",
        "reference:165:175",
        "reference:166:176",
        "reference:166:178",
        "reference:166:179",
        "reference:166:181",
        "reference:166:182",
        "reference:166:184",
        "reference:166:185",
        "reference:166:186",
        "reference:166:189",
        "reference:166:196",
        "reference:166:200",
        "reference:166:202",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 29,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 163,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 77,
      "contributing_pr_ids": [
        165,
        166,
        170,
        171,
        172,
        175,
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        264,
        276,
        277,
        285,
        289,
        296,
        304,
        309,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        398,
        513
      ],
      "contributing_edge_ids": [
        "reference:163:165",
        "reference:163:166",
        "reference:163:170",
        "reference:163:171",
        "reference:163:172",
        "reference:163:184",
        "reference:165:175",
        "reference:166:176",
        "reference:166:178",
        "reference:166:179",
        "reference:166:181",
        "reference:166:182",
        "reference:166:184",
        "reference:166:185",
        "reference:166:186",
        "reference:166:189",
        "reference:166:196",
        "reference:166:200",
        "reference:166:202",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:304:309",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 164,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 164,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 164,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 164,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 164,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 164,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 165,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        161,
        162,
        163
      ],
      "contributing_edge_ids": [
        "reference:161:165",
        "reference:162:165",
        "reference:163:165"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 165,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        161,
        162,
        163
      ],
      "contributing_edge_ids": [
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 165,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        161,
        162,
        163
      ],
      "contributing_edge_ids": [
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 165,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        175
      ],
      "contributing_edge_ids": [
        "reference:165:175"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 165,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        175,
        176,
        179,
        180,
        181,
        182,
        186,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:165:175",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 165,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        175,
        176,
        178,
        179,
        180,
        181,
        182,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:165:175",
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 166,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        163
      ],
      "contributing_edge_ids": [
        "reference:163:166"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 166,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        161,
        163
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:163:166"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 166,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        161,
        163
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:163:166"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 166,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        176,
        178,
        179,
        181,
        182,
        184,
        185,
        186,
        189,
        196,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:166:176",
        "reference:166:178",
        "reference:166:179",
        "reference:166:181",
        "reference:166:182",
        "reference:166:184",
        "reference:166:185",
        "reference:166:186",
        "reference:166:189",
        "reference:166:196",
        "reference:166:200",
        "reference:166:202"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 166,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        398,
        513
      ],
      "contributing_edge_ids": [
        "reference:166:176",
        "reference:166:178",
        "reference:166:179",
        "reference:166:181",
        "reference:166:182",
        "reference:166:184",
        "reference:166:185",
        "reference:166:186",
        "reference:166:189",
        "reference:166:196",
        "reference:166:200",
        "reference:166:202",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": 103,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 166,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 121,
      "contributing_pr_ids": [
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        264,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        384,
        393,
        394,
        396,
        398,
        399,
        402,
        436,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:166:176",
        "reference:166:178",
        "reference:166:179",
        "reference:166:181",
        "reference:166:182",
        "reference:166:184",
        "reference:166:185",
        "reference:166:186",
        "reference:166:189",
        "reference:166:196",
        "reference:166:200",
        "reference:166:202",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:398:396",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 29,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 167,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:167"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 167,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:167"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 167,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        161
      ],
      "contributing_edge_ids": [
        "reference:161:167"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 167,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        178
      ],
      "contributing_edge_ids": [
        "reference:167:178"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 167,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        178
      ],
      "contributing_edge_ids": [
        "reference:167:178"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 167,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        178
      ],
      "contributing_edge_ids": [
        "reference:167:178"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 168,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:168"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 168,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:168"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 168,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        117
      ],
      "contributing_edge_ids": [
        "reference:117:168"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 168,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        170,
        171,
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        195,
        196,
        198,
        199,
        200,
        202,
        205,
        212,
        223,
        233,
        246,
        276,
        285,
        289,
        296,
        304,
        315,
        327
      ],
      "contributing_edge_ids": [
        "reference:168:170",
        "reference:168:171",
        "reference:168:176",
        "reference:168:178",
        "reference:168:179",
        "reference:168:180",
        "reference:168:181",
        "reference:168:182",
        "reference:168:184",
        "reference:168:185",
        "reference:168:186",
        "reference:168:187",
        "reference:168:189",
        "reference:168:191",
        "reference:168:192",
        "reference:168:193",
        "reference:168:194",
        "reference:168:195",
        "reference:168:196",
        "reference:168:198",
        "reference:168:199",
        "reference:168:200",
        "reference:168:202",
        "reference:168:205",
        "reference:168:212",
        "reference:168:223",
        "reference:168:233",
        "reference:168:246",
        "reference:168:276",
        "reference:168:285",
        "reference:168:289",
        "reference:168:296",
        "reference:168:304",
        "reference:168:315",
        "reference:168:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 168,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 106,
      "contributing_pr_ids": [
        170,
        171,
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        195,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        228,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        241,
        244,
        245,
        246,
        249,
        250,
        251,
        256,
        257,
        262,
        264,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        393,
        394,
        398,
        399,
        402,
        436,
        513
      ],
      "contributing_edge_ids": [
        "reference:168:170",
        "reference:168:171",
        "reference:168:176",
        "reference:168:178",
        "reference:168:179",
        "reference:168:180",
        "reference:168:181",
        "reference:168:182",
        "reference:168:184",
        "reference:168:185",
        "reference:168:186",
        "reference:168:187",
        "reference:168:189",
        "reference:168:191",
        "reference:168:192",
        "reference:168:193",
        "reference:168:194",
        "reference:168:195",
        "reference:168:196",
        "reference:168:198",
        "reference:168:199",
        "reference:168:200",
        "reference:168:202",
        "reference:168:205",
        "reference:168:212",
        "reference:168:223",
        "reference:168:233",
        "reference:168:246",
        "reference:168:276",
        "reference:168:285",
        "reference:168:289",
        "reference:168:296",
        "reference:168:304",
        "reference:168:315",
        "reference:168:327",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:192:193",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:195:228",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:212:213",
        "reference:223:245",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 32,
      "round_2_sum_neighbor_degree": 192,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 168,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 155,
      "contributing_pr_ids": [
        170,
        171,
        176,
        178,
        179,
        180,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        195,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        228,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        264,
        267,
        268,
        272,
        274,
        275,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        296,
        297,
        300,
        302,
        303,
        304,
        305,
        307,
        308,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        372,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        456,
        513,
        526,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:168:170",
        "reference:168:171",
        "reference:168:176",
        "reference:168:178",
        "reference:168:179",
        "reference:168:180",
        "reference:168:181",
        "reference:168:182",
        "reference:168:184",
        "reference:168:185",
        "reference:168:186",
        "reference:168:187",
        "reference:168:189",
        "reference:168:191",
        "reference:168:192",
        "reference:168:193",
        "reference:168:194",
        "reference:168:195",
        "reference:168:196",
        "reference:168:198",
        "reference:168:199",
        "reference:168:200",
        "reference:168:202",
        "reference:168:205",
        "reference:168:212",
        "reference:168:223",
        "reference:168:233",
        "reference:168:246",
        "reference:168:276",
        "reference:168:285",
        "reference:168:289",
        "reference:168:296",
        "reference:168:304",
        "reference:168:315",
        "reference:168:327",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:192:193",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:195:228",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:296:300",
        "reference:296:305",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:304:309",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 38,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 169,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 169,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 169,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 169,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        171
      ],
      "contributing_edge_ids": [
        "reference:169:171"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 169,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        171
      ],
      "contributing_edge_ids": [
        "reference:169:171"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 169,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        171
      ],
      "contributing_edge_ids": [
        "reference:169:171"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 170,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        161,
        163,
        168
      ],
      "contributing_edge_ids": [
        "reference:161:170",
        "reference:163:170",
        "reference:168:170"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 170,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        117,
        161,
        163,
        168
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:117:168",
        "reference:161:170",
        "reference:163:170",
        "reference:168:170"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 170,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        117,
        161,
        163,
        168
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:117:168",
        "reference:161:170",
        "reference:163:170",
        "reference:168:170"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 170,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 170,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 170,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 171,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        163,
        168,
        169
      ],
      "contributing_edge_ids": [
        "reference:163:171",
        "reference:168:171",
        "reference:169:171"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 171,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        117,
        161,
        163,
        168,
        169
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:117:168",
        "reference:163:171",
        "reference:168:171",
        "reference:169:171"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 171,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        117,
        161,
        163,
        168,
        169
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:117:168",
        "reference:163:171",
        "reference:168:171",
        "reference:169:171"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 171,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 171,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 171,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 172,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        163
      ],
      "contributing_edge_ids": [
        "reference:163:172"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 172,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        161,
        163
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:163:172"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 172,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        161,
        163
      ],
      "contributing_edge_ids": [
        "reference:161:163",
        "reference:163:172"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 172,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 172,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 172,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 173,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 173,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 173,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 173,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 173,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 173,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 174,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 174,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 174,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 174,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 174,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 174,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 175,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        57,
        165
      ],
      "contributing_edge_ids": [
        "reference:57:175",
        "reference:165:175"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 175,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        48,
        53,
        57,
        161,
        162,
        163,
        165
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:57:175",
        "reference:165:175"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 175,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        48,
        53,
        57,
        161,
        162,
        163,
        165
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:57:175",
        "reference:165:175"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 175,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        176,
        179,
        180,
        181,
        182,
        186,
        189,
        196,
        200
      ],
      "contributing_edge_ids": [
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 175,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        176,
        178,
        179,
        180,
        181,
        182,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        235,
        237,
        238,
        244,
        246,
        249,
        251,
        262,
        264,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": 65,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 175,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 119,
      "contributing_pr_ids": [
        176,
        178,
        179,
        180,
        181,
        182,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        196,
        197,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        264,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        384,
        393,
        394,
        398,
        399,
        402,
        436,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:175:176",
        "reference:175:179",
        "reference:175:180",
        "reference:175:181",
        "reference:175:182",
        "reference:175:186",
        "reference:175:189",
        "reference:175:196",
        "reference:175:200",
        "reference:176:178",
        "reference:176:179",
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 28,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 176,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        144,
        154,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:144:176",
        "reference:154:176",
        "reference:166:176",
        "reference:168:176",
        "reference:175:176"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 176,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:176",
        "reference:154:176",
        "reference:166:176",
        "reference:168:176",
        "reference:175:176"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 176,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:176",
        "reference:154:176",
        "reference:166:176",
        "reference:168:176",
        "reference:175:176"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 176,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        178,
        179
      ],
      "contributing_edge_ids": [
        "reference:176:178",
        "reference:176:179"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 176,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        178,
        179
      ],
      "contributing_edge_ids": [
        "reference:176:178",
        "reference:176:179"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 176,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        178,
        179
      ],
      "contributing_edge_ids": [
        "reference:176:178",
        "reference:176:179"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 177,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        23,
        97,
        117,
        128,
        144,
        148,
        158
      ],
      "contributing_edge_ids": [
        "reference:23:177",
        "reference:97:177",
        "reference:117:177",
        "reference:128:177",
        "reference:144:177",
        "reference:148:177",
        "reference:158:177"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 177,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        148,
        158
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:148",
        "reference:23:177",
        "reference:97:177",
        "reference:117:177",
        "reference:128:177",
        "reference:144:177",
        "reference:148:177",
        "reference:158:177"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 35,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 177,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        148,
        158
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:148",
        "reference:23:177",
        "reference:97:177",
        "reference:117:177",
        "reference:128:177",
        "reference:144:177",
        "reference:148:177",
        "reference:158:177"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 177,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 177,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 177,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 178,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        144,
        162,
        166,
        167,
        168,
        176
      ],
      "contributing_edge_ids": [
        "reference:144:178",
        "reference:162:178",
        "reference:166:178",
        "reference:167:178",
        "reference:168:178",
        "reference:176:178"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 178,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        161,
        162,
        163,
        166,
        167,
        168,
        175,
        176
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:161:167",
        "reference:117:168",
        "reference:144:176",
        "reference:154:176",
        "reference:166:176",
        "reference:168:176",
        "reference:175:176",
        "reference:144:178",
        "reference:162:178",
        "reference:166:178",
        "reference:167:178",
        "reference:168:178",
        "reference:176:178"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 35,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 178,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        167,
        168,
        175,
        176
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:161:167",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:176",
        "reference:154:176",
        "reference:166:176",
        "reference:168:176",
        "reference:175:176",
        "reference:144:178",
        "reference:162:178",
        "reference:166:178",
        "reference:167:178",
        "reference:168:178",
        "reference:176:178"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 178,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 178,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 178,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 179,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        144,
        154,
        166,
        168,
        175,
        176
      ],
      "contributing_edge_ids": [
        "reference:144:179",
        "reference:154:179",
        "reference:166:179",
        "reference:168:179",
        "reference:175:179",
        "reference:176:179"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 179,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        163,
        165,
        166,
        168,
        175,
        176
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:176",
        "reference:154:176",
        "reference:166:176",
        "reference:168:176",
        "reference:175:176",
        "reference:144:179",
        "reference:154:179",
        "reference:166:179",
        "reference:168:179",
        "reference:175:179",
        "reference:176:179"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 35,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 179,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 46,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        176
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:176",
        "reference:154:176",
        "reference:166:176",
        "reference:168:176",
        "reference:175:176",
        "reference:144:179",
        "reference:154:179",
        "reference:166:179",
        "reference:168:179",
        "reference:175:179",
        "reference:176:179"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 179,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 179,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 179,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 180,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        168,
        175,
        181,
        186
      ],
      "contributing_edge_ids": [
        "reference:168:180",
        "reference:175:180",
        "reference:181:180",
        "reference:186:180"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 180,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        57,
        117,
        141,
        144,
        154,
        162,
        165,
        166,
        168,
        175,
        181,
        186
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:168:180",
        "reference:175:180",
        "reference:181:180",
        "reference:186:180",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 180,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        128,
        130,
        141,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        186
      ],
      "contributing_edge_ids": [
        "reference:48:57",
        "reference:53:57",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:168:180",
        "reference:175:180",
        "reference:181:180",
        "reference:186:180",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 180,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 180,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 180,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 181,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        144,
        154,
        162,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 181,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 31,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 181,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 181,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        180,
        185,
        186,
        187
      ],
      "contributing_edge_ids": [
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 181,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        180,
        185,
        186,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        204,
        205,
        206,
        207,
        211,
        213,
        217,
        227,
        229,
        235,
        238,
        246,
        264,
        398
      ],
      "contributing_edge_ids": [
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 181,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        180,
        185,
        186,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        241,
        244,
        246,
        247,
        249,
        251,
        253,
        256,
        257,
        260,
        262,
        264,
        268,
        276,
        277,
        280,
        285,
        304,
        315,
        325,
        346,
        348,
        396,
        398,
        513
      ],
      "contributing_edge_ids": [
        "reference:181:180",
        "reference:181:185",
        "reference:181:186",
        "reference:181:187",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:199:198",
        "reference:199:206",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:227:230",
        "reference:235:247",
        "reference:235:253",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 182,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 182,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 182,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 182,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        185,
        187,
        191
      ],
      "contributing_edge_ids": [
        "reference:182:185",
        "reference:182:187",
        "reference:182:191"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 182,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        185,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        211,
        213,
        217,
        227,
        229,
        398
      ],
      "contributing_edge_ids": [
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 182,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        185,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        237,
        241,
        244,
        246,
        249,
        251,
        256,
        257,
        260,
        262,
        268,
        276,
        277,
        280,
        285,
        304,
        315,
        325,
        346,
        348,
        396,
        398,
        513
      ],
      "contributing_edge_ids": [
        "reference:182:185",
        "reference:182:187",
        "reference:182:191",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:227:230",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 183,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 183,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 183,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 183,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        185,
        246
      ],
      "contributing_edge_ids": [
        "reference:183:185",
        "reference:183:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 183,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        185,
        187,
        191,
        193,
        198,
        199,
        204,
        205,
        206,
        207,
        211,
        213,
        217,
        227,
        229,
        246,
        398
      ],
      "contributing_edge_ids": [
        "reference:183:185",
        "reference:183:246",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 183,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        185,
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        234,
        241,
        244,
        246,
        249,
        251,
        256,
        257,
        260,
        262,
        276,
        277,
        285,
        304,
        315,
        325,
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:183:185",
        "reference:183:246",
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:199:198",
        "reference:199:206",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:227:230",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 184,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        144,
        149,
        153,
        158,
        162,
        163,
        166,
        168
      ],
      "contributing_edge_ids": [
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 184,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        144,
        149,
        153,
        158,
        161,
        162,
        163,
        166,
        168
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": 142,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 184,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        144,
        149,
        153,
        158,
        161,
        162,
        163,
        166,
        168
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 184,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        187,
        191,
        193,
        194,
        198,
        199,
        202,
        204,
        206,
        208,
        224,
        225,
        229,
        246,
        304,
        327
      ],
      "contributing_edge_ids": [
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 184,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 46,
      "contributing_pr_ids": [
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        213,
        216,
        217,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        262,
        276,
        277,
        285,
        304,
        309,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:304:309",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 62,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 184,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 103,
      "contributing_pr_ids": [
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        267,
        268,
        272,
        274,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        304,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:184:187",
        "reference:184:191",
        "reference:184:193",
        "reference:184:194",
        "reference:184:198",
        "reference:184:199",
        "reference:184:202",
        "reference:184:204",
        "reference:184:206",
        "reference:184:208",
        "reference:184:224",
        "reference:184:225",
        "reference:184:229",
        "reference:184:246",
        "reference:184:304",
        "reference:184:327",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:304:309",
        "reference:309:310",
        "reference:309:311",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 185,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        144,
        166,
        168,
        181,
        182,
        183
      ],
      "contributing_edge_ids": [
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 185,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 41,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 185,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 49,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 185,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        187,
        191,
        193,
        198,
        199,
        204,
        205,
        206,
        207,
        211,
        213,
        217,
        227,
        229,
        398
      ],
      "contributing_edge_ids": [
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 185,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        234,
        241,
        244,
        246,
        249,
        251,
        256,
        257,
        260,
        262,
        276,
        277,
        285,
        304,
        315,
        325,
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:199:198",
        "reference:199:206",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:227:230",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 69,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 185,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 100,
      "contributing_pr_ids": [
        187,
        191,
        193,
        194,
        197,
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        267,
        268,
        272,
        274,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        304,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        396,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:185:187",
        "reference:185:191",
        "reference:185:193",
        "reference:185:198",
        "reference:185:199",
        "reference:185:204",
        "reference:185:205",
        "reference:185:206",
        "reference:185:207",
        "reference:185:211",
        "reference:185:213",
        "reference:185:217",
        "reference:185:227",
        "reference:185:229",
        "reference:185:398",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:199:198",
        "reference:199:206",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:260:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 186,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        141,
        144,
        166,
        168,
        175,
        181
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 186,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        128,
        130,
        141,
        144,
        154,
        162,
        163,
        165,
        166,
        168,
        175,
        181
      ],
      "contributing_edge_ids": [
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 38,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 186,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 63,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        59,
        60,
        62,
        63,
        65,
        67,
        68,
        69,
        70,
        71,
        74,
        78,
        79,
        82,
        84,
        88,
        91,
        97,
        104,
        115,
        117,
        128,
        130,
        141,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:57:91",
        "reference:59:91",
        "reference:60:91",
        "reference:62:91",
        "reference:63:91",
        "reference:65:91",
        "reference:67:91",
        "reference:68:91",
        "reference:69:91",
        "reference:70:91",
        "reference:71:91",
        "reference:74:91",
        "reference:78:91",
        "reference:79:91",
        "reference:82:91",
        "reference:84:91",
        "reference:88:91",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 186,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        180,
        187,
        191,
        193,
        194,
        204,
        206,
        217,
        235,
        238,
        246,
        264
      ],
      "contributing_edge_ids": [
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 186,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        180,
        187,
        191,
        193,
        194,
        197,
        198,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        217,
        221,
        223,
        224,
        225,
        229,
        233,
        234,
        235,
        238,
        244,
        246,
        247,
        249,
        251,
        253,
        256,
        257,
        264,
        276,
        277,
        285,
        304,
        315,
        325,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:206:229",
        "reference:206:246",
        "reference:217:221",
        "reference:235:247",
        "reference:235:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": 46,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 186,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 101,
      "contributing_pr_ids": [
        180,
        187,
        191,
        193,
        194,
        197,
        198,
        202,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        238,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        262,
        263,
        264,
        267,
        268,
        272,
        274,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        304,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:186:180",
        "reference:186:187",
        "reference:186:191",
        "reference:186:193",
        "reference:186:194",
        "reference:186:204",
        "reference:186:206",
        "reference:186:217",
        "reference:186:235",
        "reference:186:238",
        "reference:186:246",
        "reference:186:264",
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 27,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 187,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        168,
        181,
        182,
        184,
        185,
        186
      ],
      "contributing_edge_ids": [
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 187,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 49,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 187,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 187,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        197,
        198,
        204
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:187:198",
        "reference:187:204"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 187,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        197,
        198,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        217,
        223,
        227,
        229,
        237,
        244,
        246,
        249,
        251,
        268,
        280,
        513
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 187,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        197,
        198,
        204,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        227,
        229,
        230,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        262,
        267,
        268,
        272,
        273,
        276,
        277,
        279,
        280,
        281,
        285,
        287,
        289,
        297,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        325,
        382,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:187:198",
        "reference:187:204",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:223:245",
        "reference:227:230",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 188,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 188,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 188,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 188,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 188,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 188,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 189,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 189,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 189,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 189,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        194,
        198,
        199,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 189,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        194,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        237,
        244,
        246,
        249,
        251,
        262,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        348,
        513
      ],
      "contributing_edge_ids": [
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": 55,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 189,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 102,
      "contributing_pr_ids": [
        194,
        198,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        262,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        384,
        393,
        394,
        398,
        399,
        402,
        436,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:189:194",
        "reference:189:198",
        "reference:189:199",
        "reference:189:200",
        "reference:189:202",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 190,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 190,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 190,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 190,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 190,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 190,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 191,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        168,
        182,
        184,
        185,
        186
      ],
      "contributing_edge_ids": [
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 191,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 43,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 191,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 191,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        193,
        194,
        202
      ],
      "contributing_edge_ids": [
        "reference:191:193",
        "reference:191:194",
        "reference:191:202"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 191,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        193,
        194,
        197,
        198,
        202,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        223,
        224,
        225,
        227,
        233,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        276,
        277,
        285,
        304,
        315,
        325,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 39,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 191,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 95,
      "contributing_pr_ids": [
        193,
        194,
        197,
        198,
        202,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        262,
        263,
        267,
        268,
        272,
        274,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        304,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:191:193",
        "reference:191:194",
        "reference:191:202",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 192,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        168
      ],
      "contributing_edge_ids": [
        "reference:168:192"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 192,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        117,
        168
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:192"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 192,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        117,
        168
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:192"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 192,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        193
      ],
      "contributing_edge_ids": [
        "reference:192:193"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 192,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        193,
        194,
        197,
        198,
        202,
        205,
        210,
        211,
        213,
        217,
        223,
        224,
        225,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        276,
        277,
        285,
        304,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:192:193",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 25,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 192,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 93,
      "contributing_pr_ids": [
        193,
        194,
        197,
        198,
        202,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        262,
        263,
        267,
        268,
        272,
        274,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        304,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:192:193",
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 193,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 193,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        141,
        144,
        149,
        153,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        191,
        192
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 42,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 193,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        191,
        192
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 193,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        194,
        197,
        198,
        202,
        205,
        210,
        211,
        213,
        217,
        223,
        224,
        225,
        234,
        244,
        246,
        249,
        251,
        256,
        257,
        276,
        277,
        285,
        304,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 193,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 92,
      "contributing_pr_ids": [
        194,
        197,
        198,
        202,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        256,
        257,
        258,
        259,
        260,
        262,
        263,
        267,
        268,
        272,
        274,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        304,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": 165,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 193,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 129,
      "contributing_pr_ids": [
        194,
        197,
        198,
        202,
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        256,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        274,
        275,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        372,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        447,
        456,
        464,
        469,
        513,
        526,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:193:194",
        "reference:193:197",
        "reference:193:198",
        "reference:193:202",
        "reference:193:205",
        "reference:193:210",
        "reference:193:211",
        "reference:193:213",
        "reference:193:217",
        "reference:193:223",
        "reference:193:224",
        "reference:193:225",
        "reference:193:234",
        "reference:193:244",
        "reference:193:246",
        "reference:193:249",
        "reference:193:251",
        "reference:193:256",
        "reference:193:257",
        "reference:193:276",
        "reference:193:277",
        "reference:193:285",
        "reference:193:304",
        "reference:193:315",
        "reference:193:325",
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:262:261",
        "reference:262:268",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:304:309",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:381:398",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 34,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 194,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        168,
        184,
        186,
        189,
        191,
        193
      ],
      "contributing_edge_ids": [
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 194,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        189,
        191,
        192,
        193
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 48,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 194,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        189,
        191,
        192,
        193
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 194,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        202,
        206,
        225,
        233,
        304,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 194,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        202,
        205,
        206,
        207,
        216,
        225,
        227,
        229,
        233,
        246,
        250,
        304,
        309,
        310,
        311,
        327,
        346,
        348,
        352,
        367,
        373
      ],
      "contributing_edge_ids": [
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:206:229",
        "reference:206:246",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:304:309",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 20,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 194,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        202,
        205,
        206,
        207,
        210,
        216,
        217,
        219,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        241,
        244,
        246,
        249,
        250,
        251,
        260,
        262,
        285,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        392,
        452
      ],
      "contributing_edge_ids": [
        "reference:194:202",
        "reference:194:206",
        "reference:194:225",
        "reference:194:233",
        "reference:194:304",
        "reference:194:346",
        "reference:194:348",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:304:309",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:367:452",
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 195,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        168
      ],
      "contributing_edge_ids": [
        "reference:168:195"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 195,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        117,
        168
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:195"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 195,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        117,
        168
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:195"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 195,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        228
      ],
      "contributing_edge_ids": [
        "reference:195:228"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 195,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        228
      ],
      "contributing_edge_ids": [
        "reference:195:228"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 195,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        228
      ],
      "contributing_edge_ids": [
        "reference:195:228"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 196,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:131:196",
        "reference:144:196",
        "reference:154:196",
        "reference:162:196",
        "reference:166:196",
        "reference:168:196",
        "reference:175:196"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 196,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:196",
        "reference:144:196",
        "reference:154:196",
        "reference:162:196",
        "reference:166:196",
        "reference:168:196",
        "reference:175:196"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 196,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:196",
        "reference:144:196",
        "reference:154:196",
        "reference:162:196",
        "reference:166:196",
        "reference:168:196",
        "reference:175:196"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 196,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 196,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 196,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 197,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        187,
        193
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 197,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        168,
        181,
        182,
        184,
        185,
        186,
        187,
        191,
        192,
        193
      ],
      "contributing_edge_ids": [
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 197,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        191,
        192,
        193
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 197,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        205,
        206,
        207,
        210,
        211,
        213,
        217,
        223,
        227,
        229,
        237,
        244,
        246,
        249,
        251,
        268,
        280,
        513
      ],
      "contributing_edge_ids": [
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 197,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        227,
        229,
        230,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        262,
        267,
        268,
        272,
        273,
        276,
        277,
        279,
        280,
        281,
        285,
        287,
        289,
        297,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        325,
        382,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:217:221",
        "reference:223:245",
        "reference:227:230",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": 99,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 197,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 101,
      "contributing_pr_ids": [
        205,
        206,
        207,
        210,
        211,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        227,
        229,
        230,
        232,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        372,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513,
        526,
        528,
        581,
        585
      ],
      "contributing_edge_ids": [
        "reference:197:205",
        "reference:197:206",
        "reference:197:207",
        "reference:197:210",
        "reference:197:211",
        "reference:197:213",
        "reference:197:217",
        "reference:197:223",
        "reference:197:227",
        "reference:197:229",
        "reference:197:237",
        "reference:197:244",
        "reference:197:246",
        "reference:197:249",
        "reference:197:251",
        "reference:197:268",
        "reference:197:280",
        "reference:197:513",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:262:261",
        "reference:262:268",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:513:528",
        "reference:513:581",
        "reference:528:581",
        "reference:528:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 27,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 198,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        168,
        184,
        185,
        187,
        189,
        193,
        199
      ],
      "contributing_edge_ids": [
        "reference:168:198",
        "reference:184:198",
        "reference:185:198",
        "reference:187:198",
        "reference:189:198",
        "reference:193:198",
        "reference:199:198"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 198,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        199,
        200
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:198",
        "reference:184:198",
        "reference:185:198",
        "reference:187:198",
        "reference:189:198",
        "reference:193:198",
        "reference:199:198",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": 54,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 198,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        199,
        200
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:198",
        "reference:184:198",
        "reference:185:198",
        "reference:187:198",
        "reference:189:198",
        "reference:193:198",
        "reference:199:198",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 198,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 198,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 198,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 199,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        168,
        184,
        185,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 199,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 45,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 199,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 199,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        198,
        206
      ],
      "contributing_edge_ids": [
        "reference:199:198",
        "reference:199:206"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 199,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        198,
        206,
        229,
        246
      ],
      "contributing_edge_ids": [
        "reference:199:198",
        "reference:199:206",
        "reference:206:229",
        "reference:206:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 199,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        198,
        206,
        229,
        246
      ],
      "contributing_edge_ids": [
        "reference:199:198",
        "reference:199:206",
        "reference:206:229",
        "reference:206:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 200,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 200,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        189
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 44,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 200,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 49,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        48,
        53,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        189
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:48:57",
        "reference:53:57",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:117:125",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:161:165",
        "reference:162:165",
        "reference:163:165",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 200,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        225,
        227,
        229,
        230,
        233,
        237,
        244,
        246,
        249,
        251,
        262,
        276,
        285,
        289,
        296,
        304,
        315,
        325,
        327,
        346,
        513
      ],
      "contributing_edge_ids": [
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 200,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 100,
      "contributing_pr_ids": [
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        262,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        296,
        297,
        300,
        302,
        304,
        305,
        309,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        384,
        393,
        394,
        398,
        399,
        402,
        436,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:262:261",
        "reference:262:268",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:296:300",
        "reference:296:305",
        "reference:304:309",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": 174,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 200,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 137,
      "contributing_pr_ids": [
        198,
        199,
        202,
        204,
        205,
        206,
        207,
        208,
        210,
        211,
        212,
        213,
        214,
        216,
        217,
        219,
        220,
        221,
        223,
        224,
        225,
        227,
        229,
        230,
        232,
        233,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        262,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        275,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        296,
        297,
        300,
        302,
        303,
        304,
        305,
        307,
        308,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        372,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        452,
        456,
        513,
        526,
        528,
        581,
        585
      ],
      "contributing_edge_ids": [
        "reference:199:198",
        "reference:199:206",
        "reference:200:199",
        "reference:200:202",
        "reference:200:204",
        "reference:200:205",
        "reference:200:206",
        "reference:200:207",
        "reference:200:208",
        "reference:200:210",
        "reference:200:211",
        "reference:200:212",
        "reference:200:213",
        "reference:200:214",
        "reference:200:216",
        "reference:200:217",
        "reference:200:219",
        "reference:200:220",
        "reference:200:221",
        "reference:200:223",
        "reference:200:225",
        "reference:200:227",
        "reference:200:229",
        "reference:200:230",
        "reference:200:233",
        "reference:200:237",
        "reference:200:244",
        "reference:200:246",
        "reference:200:249",
        "reference:200:251",
        "reference:200:262",
        "reference:200:276",
        "reference:200:285",
        "reference:200:289",
        "reference:200:296",
        "reference:200:304",
        "reference:200:315",
        "reference:200:325",
        "reference:200:327",
        "reference:200:346",
        "reference:200:513",
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:212:213",
        "reference:214:220",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:232:210",
        "reference:232:235",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:262:261",
        "reference:262:268",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:296:300",
        "reference:296:305",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:304:309",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:367:452",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456",
        "reference:513:528",
        "reference:513:581",
        "reference:528:581",
        "reference:528:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 32,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 201,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 201,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 201,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 201,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 201,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 201,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 202,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        166,
        168,
        184,
        189,
        191,
        193,
        194,
        200
      ],
      "contributing_edge_ids": [
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 202,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        182,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200
      ],
      "contributing_edge_ids": [
        "reference:163:166",
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 57,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 202,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 202,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        205,
        206,
        207,
        216,
        227,
        233,
        304
      ],
      "contributing_edge_ids": [
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 202,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        205,
        206,
        207,
        210,
        216,
        217,
        219,
        221,
        223,
        227,
        229,
        230,
        233,
        241,
        244,
        246,
        249,
        250,
        251,
        260,
        262,
        285,
        304,
        309,
        310,
        311,
        315,
        325,
        327
      ],
      "contributing_edge_ids": [
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:304:309"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 34,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 202,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 80,
      "contributing_pr_ids": [
        205,
        206,
        207,
        210,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        227,
        229,
        230,
        232,
        233,
        234,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        262,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        285,
        287,
        289,
        291,
        297,
        302,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:202:205",
        "reference:202:206",
        "reference:202:207",
        "reference:202:216",
        "reference:202:227",
        "reference:202:233",
        "reference:202:304",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:206:229",
        "reference:206:246",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:260:277",
        "reference:262:261",
        "reference:262:268",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:304:309",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 203,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 203,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 203,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 203,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 203,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 203,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 204,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        23,
        184,
        185,
        186,
        187,
        200
      ],
      "contributing_edge_ids": [
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 204,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        7,
        10,
        13,
        14,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 57,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 204,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 204,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        205,
        207,
        217
      ],
      "contributing_edge_ids": [
        "reference:204:205",
        "reference:204:207",
        "reference:204:217"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 204,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        205,
        207,
        210,
        217,
        219,
        221,
        223,
        227,
        229,
        241,
        244,
        246,
        249,
        251,
        260,
        262,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:217:221"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 20,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 204,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 71,
      "contributing_pr_ids": [
        205,
        207,
        210,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        227,
        229,
        230,
        232,
        234,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        262,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        285,
        287,
        289,
        291,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:204:205",
        "reference:204:207",
        "reference:204:217",
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:227:230",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:260:277",
        "reference:262:261",
        "reference:262:268",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 205,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        168,
        185,
        193,
        197,
        200,
        202,
        204
      ],
      "contributing_edge_ids": [
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 205,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        23,
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 205,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 63,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 205,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        207,
        219,
        223,
        229,
        241,
        246,
        262
      ],
      "contributing_edge_ids": [
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 205,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        207,
        210,
        217,
        219,
        223,
        224,
        227,
        229,
        230,
        232,
        241,
        244,
        245,
        246,
        249,
        251,
        260,
        261,
        262,
        268,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:262:261",
        "reference:262:268"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 20,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 205,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 73,
      "contributing_pr_ids": [
        207,
        210,
        213,
        216,
        217,
        219,
        221,
        223,
        224,
        227,
        229,
        230,
        232,
        234,
        235,
        237,
        240,
        241,
        243,
        244,
        245,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        262,
        265,
        267,
        268,
        272,
        273,
        276,
        277,
        279,
        280,
        285,
        287,
        289,
        291,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:205:207",
        "reference:205:219",
        "reference:205:223",
        "reference:205:229",
        "reference:205:241",
        "reference:205:246",
        "reference:205:262",
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:217:221",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:223:245",
        "reference:224:230",
        "reference:224:246",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:232:210",
        "reference:232:235",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:260:277",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:262:261",
        "reference:262:268",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 206,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        184,
        185,
        186,
        194,
        197,
        199,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:184:206",
        "reference:185:206",
        "reference:186:206",
        "reference:194:206",
        "reference:197:206",
        "reference:199:206",
        "reference:200:206",
        "reference:202:206"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 206,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        197,
        199,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:184:206",
        "reference:185:206",
        "reference:186:206",
        "reference:194:206",
        "reference:197:206",
        "reference:199:206",
        "reference:200:206",
        "reference:202:206"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": 64,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 206,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        199,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:184:206",
        "reference:185:206",
        "reference:186:206",
        "reference:194:206",
        "reference:197:206",
        "reference:199:206",
        "reference:200:206",
        "reference:202:206"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 206,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        229,
        246
      ],
      "contributing_edge_ids": [
        "reference:206:229",
        "reference:206:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 206,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        229,
        246
      ],
      "contributing_edge_ids": [
        "reference:206:229",
        "reference:206:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 206,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        229,
        246
      ],
      "contributing_edge_ids": [
        "reference:206:229",
        "reference:206:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 207,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        185,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 207,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        23,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        193,
        194,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 207,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 207,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        210,
        217,
        227,
        229,
        244,
        246,
        249,
        251,
        260,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 207,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        210,
        213,
        216,
        217,
        221,
        227,
        229,
        230,
        234,
        237,
        240,
        243,
        244,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        267,
        268,
        272,
        276,
        277,
        279,
        280,
        285,
        287,
        289,
        291,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:217:221",
        "reference:227:230",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:260:277",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": 77,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 207,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 102,
      "contributing_pr_ids": [
        210,
        213,
        216,
        217,
        221,
        227,
        229,
        230,
        234,
        235,
        237,
        240,
        243,
        244,
        246,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        275,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        372,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        456,
        513,
        526
      ],
      "contributing_edge_ids": [
        "reference:207:210",
        "reference:207:217",
        "reference:207:227",
        "reference:207:229",
        "reference:207:244",
        "reference:207:246",
        "reference:207:249",
        "reference:207:251",
        "reference:207:260",
        "reference:207:285",
        "reference:207:315",
        "reference:207:325",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 27,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 208,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        184,
        200
      ],
      "contributing_edge_ids": [
        "reference:184:208",
        "reference:200:208"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 208,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:184:208",
        "reference:200:208"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 31,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 208,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        184,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:184:208",
        "reference:200:208"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 208,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        213,
        224,
        246,
        262
      ],
      "contributing_edge_ids": [
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 208,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        213,
        224,
        230,
        246,
        261,
        262,
        268
      ],
      "contributing_edge_ids": [
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:262:261",
        "reference:262:268"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 208,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        210,
        213,
        224,
        230,
        246,
        261,
        262,
        265,
        267,
        268,
        272,
        273,
        285,
        287,
        311,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:208:213",
        "reference:208:224",
        "reference:208:246",
        "reference:208:262",
        "reference:224:230",
        "reference:224:246",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:262:261",
        "reference:262:268",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 209,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 209,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 209,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 209,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        234
      ],
      "contributing_edge_ids": [
        "reference:209:234"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 209,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        210,
        234,
        235,
        237,
        240,
        243,
        244,
        249,
        250,
        251,
        257,
        263,
        268,
        276,
        277,
        285,
        289,
        315,
        325,
        370,
        373,
        375,
        381,
        382,
        385,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:209:234",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 209,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 84,
      "contributing_pr_ids": [
        210,
        213,
        216,
        227,
        230,
        234,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        267,
        268,
        272,
        273,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        425,
        433,
        436,
        445,
        447,
        456,
        464,
        469,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:209:234",
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:381:398",
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 210,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        211,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 210,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 41,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 210,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 74,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 210,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        213,
        216,
        227,
        230,
        234,
        237,
        240,
        243,
        244,
        247,
        249,
        251,
        268,
        276,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 210,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 68,
      "contributing_pr_ids": [
        213,
        216,
        221,
        227,
        230,
        234,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        263,
        267,
        268,
        272,
        273,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": 113,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 210,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 103,
      "contributing_pr_ids": [
        213,
        216,
        221,
        227,
        230,
        234,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        275,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        372,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        447,
        456,
        464,
        469,
        513,
        526,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:381:398",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 28,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 211,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        185,
        193,
        197,
        200
      ],
      "contributing_edge_ids": [
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 211,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200
      ],
      "contributing_edge_ids": [
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 211,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 211,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        210,
        213,
        216,
        217,
        221,
        227,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 211,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        210,
        213,
        216,
        217,
        221,
        227,
        230,
        234,
        237,
        240,
        243,
        244,
        247,
        249,
        251,
        268,
        276,
        285,
        287,
        291,
        297,
        302,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:227:230",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 50,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 211,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 87,
      "contributing_pr_ids": [
        210,
        213,
        216,
        217,
        221,
        227,
        230,
        234,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        263,
        267,
        268,
        272,
        273,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        456,
        513
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:211:210",
        "reference:211:213",
        "reference:211:216",
        "reference:211:217",
        "reference:211:221",
        "reference:211:227",
        "reference:211:285",
        "reference:211:315",
        "reference:211:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:217:221",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:291:293",
        "reference:291:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 212,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        168,
        200
      ],
      "contributing_edge_ids": [
        "reference:168:212",
        "reference:200:212"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 212,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:212",
        "reference:200:212"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 212,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:212",
        "reference:200:212"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 212,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        213
      ],
      "contributing_edge_ids": [
        "reference:212:213"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 212,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        213
      ],
      "contributing_edge_ids": [
        "reference:212:213"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 212,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        213
      ],
      "contributing_edge_ids": [
        "reference:212:213"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 213,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        185,
        193,
        197,
        200,
        208,
        210,
        211,
        212
      ],
      "contributing_edge_ids": [
        "reference:185:213",
        "reference:193:213",
        "reference:197:213",
        "reference:200:213",
        "reference:208:213",
        "reference:210:213",
        "reference:211:213",
        "reference:212:213"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 213,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        207,
        208,
        210,
        211,
        212,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:184:208",
        "reference:200:208",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:168:212",
        "reference:200:212",
        "reference:185:213",
        "reference:193:213",
        "reference:197:213",
        "reference:200:213",
        "reference:208:213",
        "reference:210:213",
        "reference:211:213",
        "reference:212:213"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 40,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 213,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 74,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        212,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:184:208",
        "reference:200:208",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:168:212",
        "reference:200:212",
        "reference:185:213",
        "reference:193:213",
        "reference:197:213",
        "reference:200:213",
        "reference:208:213",
        "reference:210:213",
        "reference:211:213",
        "reference:212:213",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 213,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 213,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 213,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 214,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        200
      ],
      "contributing_edge_ids": [
        "reference:200:214"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 214,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:200:214"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 214,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:200:214"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 214,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        220
      ],
      "contributing_edge_ids": [
        "reference:214:220"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 214,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        220
      ],
      "contributing_edge_ids": [
        "reference:214:220"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 214,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        220
      ],
      "contributing_edge_ids": [
        "reference:214:220"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 215,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 215,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 215,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 215,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 215,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 215,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 216,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        200,
        202,
        210,
        211
      ],
      "contributing_edge_ids": [
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 216,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        189,
        191,
        193,
        194,
        197,
        200,
        202,
        207,
        210,
        211,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 216,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 72,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 216,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        221,
        227,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 216,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        221,
        227,
        230,
        285,
        287,
        291,
        297,
        302,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 216,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        210,
        221,
        227,
        230,
        275,
        285,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        376,
        379,
        382,
        384,
        388,
        392,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        456
      ],
      "contributing_edge_ids": [
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:291:293",
        "reference:291:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 217,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        185,
        186,
        193,
        197,
        200,
        204,
        207,
        211
      ],
      "contributing_edge_ids": [
        "reference:185:217",
        "reference:186:217",
        "reference:193:217",
        "reference:197:217",
        "reference:200:217",
        "reference:204:217",
        "reference:207:217",
        "reference:211:217"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 217,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        23,
        131,
        141,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        211
      ],
      "contributing_edge_ids": [
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:185:217",
        "reference:186:217",
        "reference:193:217",
        "reference:197:217",
        "reference:200:217",
        "reference:204:217",
        "reference:207:217",
        "reference:211:217"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 44,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 217,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 67,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        211
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:185:217",
        "reference:186:217",
        "reference:193:217",
        "reference:197:217",
        "reference:200:217",
        "reference:204:217",
        "reference:207:217",
        "reference:211:217"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 217,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        221
      ],
      "contributing_edge_ids": [
        "reference:217:221"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 217,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        221
      ],
      "contributing_edge_ids": [
        "reference:217:221"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 217,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        221
      ],
      "contributing_edge_ids": [
        "reference:217:221"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 218,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 218,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 218,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 218,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 218,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 218,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 219,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        200,
        205
      ],
      "contributing_edge_ids": [
        "reference:200:219",
        "reference:205:219"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 219,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        185,
        189,
        193,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:200:219",
        "reference:205:219"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 219,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:200:219",
        "reference:205:219"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 219,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        224,
        230,
        232,
        246,
        262
      ],
      "contributing_edge_ids": [
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 219,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        210,
        224,
        230,
        232,
        235,
        246,
        261,
        262,
        268,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:224:230",
        "reference:224:246",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:232:210",
        "reference:232:235",
        "reference:262:261",
        "reference:262:268"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 219,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        210,
        213,
        216,
        224,
        227,
        230,
        232,
        234,
        235,
        237,
        240,
        243,
        244,
        246,
        247,
        249,
        251,
        253,
        261,
        262,
        265,
        267,
        268,
        272,
        273,
        276,
        285,
        287,
        291,
        297,
        302,
        311,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:219:224",
        "reference:219:230",
        "reference:219:232",
        "reference:219:246",
        "reference:219:262",
        "reference:224:230",
        "reference:224:246",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:232:210",
        "reference:232:235",
        "reference:235:247",
        "reference:235:253",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:262:261",
        "reference:262:268",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 220,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        200,
        214
      ],
      "contributing_edge_ids": [
        "reference:200:220",
        "reference:214:220"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 220,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        200,
        214
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:200:214",
        "reference:200:220",
        "reference:214:220"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 220,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        189,
        200,
        214
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:200:214",
        "reference:200:220",
        "reference:214:220"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 220,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 220,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 220,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 221,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        200,
        211,
        216,
        217
      ],
      "contributing_edge_ids": [
        "reference:200:221",
        "reference:211:221",
        "reference:216:221",
        "reference:217:221"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 221,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        185,
        186,
        189,
        193,
        197,
        200,
        202,
        204,
        207,
        210,
        211,
        216,
        217
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:185:217",
        "reference:186:217",
        "reference:193:217",
        "reference:197:217",
        "reference:200:217",
        "reference:204:217",
        "reference:207:217",
        "reference:211:217",
        "reference:200:221",
        "reference:211:221",
        "reference:216:221",
        "reference:217:221"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 221,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 67,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        210,
        211,
        216,
        217,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:185:217",
        "reference:186:217",
        "reference:193:217",
        "reference:197:217",
        "reference:200:217",
        "reference:204:217",
        "reference:207:217",
        "reference:211:217",
        "reference:200:221",
        "reference:211:221",
        "reference:216:221",
        "reference:217:221"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 221,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 221,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 221,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 222,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 222,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 222,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 222,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 222,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 222,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 223,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        168,
        193,
        197,
        200,
        205
      ],
      "contributing_edge_ids": [
        "reference:168:223",
        "reference:193:223",
        "reference:197:223",
        "reference:200:223",
        "reference:205:223"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 223,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:168:223",
        "reference:193:223",
        "reference:197:223",
        "reference:200:223",
        "reference:205:223"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 223,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:168:223",
        "reference:193:223",
        "reference:197:223",
        "reference:200:223",
        "reference:205:223"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 223,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        245
      ],
      "contributing_edge_ids": [
        "reference:223:245"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 223,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        245
      ],
      "contributing_edge_ids": [
        "reference:223:245"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 223,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        245
      ],
      "contributing_edge_ids": [
        "reference:223:245"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 224,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        184,
        193,
        208,
        219
      ],
      "contributing_edge_ids": [
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 224,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        144,
        149,
        153,
        158,
        162,
        163,
        166,
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        200,
        205,
        208,
        219
      ],
      "contributing_edge_ids": [
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:184:208",
        "reference:200:208",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": 33,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 224,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 62,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        208,
        219
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:208",
        "reference:200:208",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 224,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        230,
        246
      ],
      "contributing_edge_ids": [
        "reference:224:230",
        "reference:224:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 224,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        210,
        230,
        246,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:224:230",
        "reference:224:246",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 224,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        210,
        213,
        216,
        227,
        230,
        234,
        237,
        240,
        243,
        244,
        246,
        247,
        249,
        251,
        268,
        276,
        285,
        287,
        291,
        297,
        302,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:224:230",
        "reference:224:246",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 225,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        117,
        144,
        184,
        193,
        194,
        200
      ],
      "contributing_edge_ids": [
        "reference:117:225",
        "reference:144:225",
        "reference:184:225",
        "reference:193:225",
        "reference:194:225",
        "reference:200:225"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 225,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:117:225",
        "reference:144:225",
        "reference:184:225",
        "reference:193:225",
        "reference:194:225",
        "reference:200:225"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": 69,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 225,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 63,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:117:225",
        "reference:144:225",
        "reference:184:225",
        "reference:193:225",
        "reference:194:225",
        "reference:200:225"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 225,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 225,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 225,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 226,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        40,
        41,
        43,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:40:226",
        "reference:41:226",
        "reference:43:226",
        "reference:48:226",
        "reference:49:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 226,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        32,
        34,
        36,
        38,
        39,
        40,
        41,
        43,
        47,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:40:226",
        "reference:41:226",
        "reference:43:226",
        "reference:48:226",
        "reference:49:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 226,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        37,
        38,
        39,
        40,
        41,
        43,
        47,
        48,
        49
      ],
      "contributing_edge_ids": [
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:32:39",
        "reference:34:39",
        "reference:36:39",
        "reference:37:39",
        "reference:38:39",
        "reference:32:40",
        "reference:34:40",
        "reference:36:40",
        "reference:38:40",
        "reference:39:40",
        "reference:40:49",
        "reference:47:49",
        "reference:48:49",
        "reference:40:226",
        "reference:41:226",
        "reference:43:226",
        "reference:48:226",
        "reference:49:226"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 226,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 226,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 226,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 227,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        185,
        197,
        200,
        202,
        207,
        210,
        211,
        216
      ],
      "contributing_edge_ids": [
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 227,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        187,
        189,
        191,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        210,
        211,
        216,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 48,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 227,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 72,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 227,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        230
      ],
      "contributing_edge_ids": [
        "reference:227:230"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 227,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        210,
        230,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 227,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        210,
        213,
        216,
        230,
        234,
        237,
        240,
        243,
        244,
        247,
        249,
        251,
        268,
        276,
        285,
        287,
        291,
        297,
        302,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 228,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        195
      ],
      "contributing_edge_ids": [
        "reference:195:228"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 228,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        168,
        195
      ],
      "contributing_edge_ids": [
        "reference:168:195",
        "reference:195:228"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 228,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        117,
        168,
        195
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:195",
        "reference:195:228"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 228,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 228,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 228,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 229,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        184,
        185,
        197,
        200,
        205,
        206,
        207
      ],
      "contributing_edge_ids": [
        "reference:184:229",
        "reference:185:229",
        "reference:197:229",
        "reference:200:229",
        "reference:205:229",
        "reference:206:229",
        "reference:207:229"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 229,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        193,
        194,
        197,
        199,
        200,
        202,
        204,
        205,
        206,
        207
      ],
      "contributing_edge_ids": [
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:206",
        "reference:185:206",
        "reference:186:206",
        "reference:194:206",
        "reference:197:206",
        "reference:199:206",
        "reference:200:206",
        "reference:202:206",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:184:229",
        "reference:185:229",
        "reference:197:229",
        "reference:200:229",
        "reference:205:229",
        "reference:206:229",
        "reference:207:229"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 60,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 229,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 68,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        199,
        200,
        202,
        204,
        205,
        206,
        207
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:206",
        "reference:185:206",
        "reference:186:206",
        "reference:194:206",
        "reference:197:206",
        "reference:199:206",
        "reference:200:206",
        "reference:202:206",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:184:229",
        "reference:185:229",
        "reference:197:229",
        "reference:200:229",
        "reference:205:229",
        "reference:206:229",
        "reference:207:229"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 229,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 229,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 229,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 230,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        200,
        210,
        219,
        224,
        227
      ],
      "contributing_edge_ids": [
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 230,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        189,
        193,
        197,
        200,
        202,
        205,
        207,
        208,
        210,
        211,
        216,
        219,
        224,
        227,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 32,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 230,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 73,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:184:208",
        "reference:200:208",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 230,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        210,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 230,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        210,
        213,
        216,
        227,
        234,
        237,
        240,
        243,
        244,
        247,
        249,
        251,
        268,
        276,
        285,
        287,
        291,
        297,
        302,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 43,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 230,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 85,
      "contributing_pr_ids": [
        210,
        213,
        216,
        221,
        227,
        234,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        263,
        267,
        268,
        272,
        273,
        275,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        456,
        513
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:291:293",
        "reference:291:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 231,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 231,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 231,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 231,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 231,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 231,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 232,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        219
      ],
      "contributing_edge_ids": [
        "reference:219:232"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 232,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        200,
        205,
        219
      ],
      "contributing_edge_ids": [
        "reference:200:219",
        "reference:205:219",
        "reference:219:232"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 232,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        185,
        189,
        193,
        197,
        200,
        202,
        204,
        205,
        219
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:200:219",
        "reference:205:219",
        "reference:219:232"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 232,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        210,
        235
      ],
      "contributing_edge_ids": [
        "reference:232:210",
        "reference:232:235"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 232,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        210,
        213,
        216,
        227,
        230,
        234,
        235,
        237,
        240,
        243,
        244,
        247,
        249,
        251,
        253,
        268,
        276,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:232:210",
        "reference:232:235",
        "reference:235:247",
        "reference:235:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 232,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 69,
      "contributing_pr_ids": [
        210,
        213,
        216,
        221,
        227,
        230,
        234,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        263,
        267,
        268,
        272,
        273,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:232:210",
        "reference:232:235",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 233,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        168,
        194,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 233,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        186,
        189,
        191,
        193,
        194,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 233,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200,
        202
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 233,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        246,
        250,
        304,
        310,
        311,
        327
      ],
      "contributing_edge_ids": [
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 233,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        246,
        250,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        327,
        330,
        331,
        340,
        346
      ],
      "contributing_edge_ids": [
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:304:309",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 233,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        246,
        250,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        327,
        330,
        331,
        340,
        346,
        348,
        352,
        367,
        373
      ],
      "contributing_edge_ids": [
        "reference:233:246",
        "reference:233:250",
        "reference:233:304",
        "reference:233:310",
        "reference:233:311",
        "reference:233:327",
        "reference:304:309",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:327:330",
        "reference:327:331",
        "reference:327:340",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 234,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        193,
        209,
        210
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 234,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 16,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 234,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 234,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        210,
        235,
        237,
        240,
        243,
        244,
        249,
        250,
        251,
        257,
        263,
        268,
        276,
        277,
        285,
        289,
        315,
        325,
        370,
        373,
        375,
        381,
        382,
        385,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 234,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 83,
      "contributing_pr_ids": [
        210,
        213,
        216,
        227,
        230,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        267,
        268,
        272,
        273,
        276,
        277,
        278,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        393,
        394,
        396,
        398,
        399,
        402,
        425,
        433,
        436,
        445,
        447,
        456,
        464,
        469,
        513,
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:289:287",
        "reference:289:292",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:381:398",
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": 117,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 234,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 114,
      "contributing_pr_ids": [
        210,
        213,
        216,
        221,
        227,
        230,
        235,
        237,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        275,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        372,
        373,
        375,
        376,
        379,
        381,
        382,
        384,
        385,
        388,
        392,
        393,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        426,
        433,
        436,
        437,
        445,
        447,
        451,
        453,
        454,
        456,
        464,
        469,
        499,
        513,
        523,
        526,
        528,
        531,
        535,
        569,
        581,
        585
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:381:398",
        "reference:384:275",
        "reference:384:398",
        "reference:388:376",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453",
        "reference:513:528",
        "reference:513:581",
        "reference:528:581",
        "reference:528:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 31,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 235,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        186,
        232,
        234,
        237
      ],
      "contributing_edge_ids": [
        "reference:186:235",
        "reference:232:235",
        "reference:234:235",
        "reference:237:235"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 235,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        141,
        144,
        166,
        168,
        175,
        181,
        186,
        193,
        197,
        200,
        209,
        210,
        219,
        232,
        234,
        237
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:186:235",
        "reference:232:235",
        "reference:234:235",
        "reference:237:235",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 235,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        141,
        144,
        154,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        205,
        207,
        209,
        210,
        211,
        219,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:200:219",
        "reference:205:219",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:186:235",
        "reference:232:235",
        "reference:234:235",
        "reference:237:235",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 235,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        247,
        253
      ],
      "contributing_edge_ids": [
        "reference:235:247",
        "reference:235:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 235,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        247,
        253
      ],
      "contributing_edge_ids": [
        "reference:235:247",
        "reference:235:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 235,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        247,
        253
      ],
      "contributing_edge_ids": [
        "reference:235:247",
        "reference:235:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 236,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 236,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 236,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 236,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 236,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 236,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 237,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        197,
        200,
        210,
        234
      ],
      "contributing_edge_ids": [
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 237,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        187,
        189,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        240
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 237,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 237,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        210,
        235,
        244,
        249,
        251,
        268,
        277,
        280
      ],
      "contributing_edge_ids": [
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 237,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        210,
        213,
        216,
        227,
        230,
        234,
        235,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        267,
        268,
        272,
        273,
        276,
        277,
        278,
        279,
        280,
        281,
        285,
        287,
        289,
        297,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        325,
        382
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:277:278",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 59,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 237,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 83,
      "contributing_pr_ids": [
        210,
        213,
        216,
        221,
        227,
        230,
        234,
        235,
        240,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        276,
        277,
        278,
        279,
        280,
        281,
        282,
        285,
        286,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        313,
        314,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        372,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513,
        526
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:235:247",
        "reference:235:253",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 238,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        186
      ],
      "contributing_edge_ids": [
        "reference:186:238"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 238,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        141,
        144,
        166,
        168,
        175,
        181,
        186
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:186:238"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 238,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        128,
        130,
        141,
        144,
        154,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        186
      ],
      "contributing_edge_ids": [
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:186:238"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 238,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 238,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 238,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 239,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 239,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 239,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 239,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 239,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 239,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 240,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        210,
        234
      ],
      "contributing_edge_ids": [
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 240,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237
      ],
      "contributing_edge_ids": [
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 240,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 240,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        210
      ],
      "contributing_edge_ids": [
        "reference:240:210"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 240,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        210,
        213,
        216,
        227,
        230,
        234,
        237,
        243,
        244,
        247,
        249,
        251,
        268,
        276,
        285,
        315,
        325
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:240:210"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 240,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 68,
      "contributing_pr_ids": [
        210,
        213,
        216,
        221,
        227,
        230,
        234,
        235,
        237,
        243,
        244,
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        260,
        263,
        267,
        268,
        272,
        273,
        276,
        277,
        279,
        280,
        282,
        285,
        286,
        287,
        289,
        291,
        297,
        302,
        310,
        311,
        312,
        315,
        316,
        320,
        321,
        323,
        325,
        340,
        346,
        348,
        352,
        370,
        373,
        375,
        381,
        382,
        384,
        385,
        393,
        394,
        398,
        399,
        402,
        436,
        445,
        513
      ],
      "contributing_edge_ids": [
        "reference:210:213",
        "reference:210:216",
        "reference:210:227",
        "reference:210:230",
        "reference:210:234",
        "reference:210:237",
        "reference:210:240",
        "reference:210:243",
        "reference:210:244",
        "reference:210:247",
        "reference:210:249",
        "reference:210:251",
        "reference:210:268",
        "reference:210:276",
        "reference:210:285",
        "reference:210:315",
        "reference:210:325",
        "reference:216:221",
        "reference:216:227",
        "reference:216:285",
        "reference:216:315",
        "reference:216:325",
        "reference:227:230",
        "reference:230:210",
        "reference:230:285",
        "reference:230:315",
        "reference:230:325",
        "reference:234:210",
        "reference:234:235",
        "reference:234:237",
        "reference:234:240",
        "reference:234:243",
        "reference:234:244",
        "reference:234:249",
        "reference:234:250",
        "reference:234:251",
        "reference:234:257",
        "reference:234:263",
        "reference:234:268",
        "reference:234:276",
        "reference:234:277",
        "reference:234:285",
        "reference:234:289",
        "reference:234:315",
        "reference:234:325",
        "reference:234:370",
        "reference:234:373",
        "reference:234:375",
        "reference:234:381",
        "reference:234:382",
        "reference:234:385",
        "reference:234:436",
        "reference:234:445",
        "reference:234:513",
        "reference:237:210",
        "reference:237:235",
        "reference:237:244",
        "reference:237:249",
        "reference:237:251",
        "reference:237:268",
        "reference:237:277",
        "reference:237:280",
        "reference:240:210",
        "reference:243:247",
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 241,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        205
      ],
      "contributing_edge_ids": [
        "reference:205:241"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 241,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        168,
        185,
        193,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:205:241"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 241,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        23,
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:205:241"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 241,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 241,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 241,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 242,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 242,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 242,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 242,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 242,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 242,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 243,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        210,
        234
      ],
      "contributing_edge_ids": [
        "reference:210:243",
        "reference:234:243"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 243,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:210:243",
        "reference:234:243"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 243,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:210:243",
        "reference:234:243"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 243,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        247
      ],
      "contributing_edge_ids": [
        "reference:243:247"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 243,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        247
      ],
      "contributing_edge_ids": [
        "reference:243:247"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 243,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        247
      ],
      "contributing_edge_ids": [
        "reference:243:247"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 244,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 244,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 39,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 244,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 73,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 244,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        247,
        248,
        249,
        250,
        251,
        254,
        258,
        260,
        279,
        280,
        287,
        289,
        316
      ],
      "contributing_edge_ids": [
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 244,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        267,
        268,
        272,
        277,
        279,
        280,
        281,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        310,
        311,
        312,
        313,
        314,
        316,
        372,
        382,
        393,
        526
      ],
      "contributing_edge_ids": [
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:260:277",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 42,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 244,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        247,
        248,
        249,
        250,
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        277,
        278,
        279,
        280,
        281,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        303,
        305,
        310,
        311,
        312,
        313,
        314,
        316,
        346,
        372,
        382,
        393,
        526,
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:244:247",
        "reference:244:248",
        "reference:244:249",
        "reference:244:250",
        "reference:244:251",
        "reference:244:254",
        "reference:244:258",
        "reference:244:260",
        "reference:244:279",
        "reference:244:280",
        "reference:244:287",
        "reference:244:289",
        "reference:244:316",
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:277:278",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 245,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        223
      ],
      "contributing_edge_ids": [
        "reference:223:245"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 245,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        168,
        193,
        197,
        200,
        205,
        223
      ],
      "contributing_edge_ids": [
        "reference:168:223",
        "reference:193:223",
        "reference:197:223",
        "reference:200:223",
        "reference:205:223",
        "reference:223:245"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 245,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        223
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:168:223",
        "reference:193:223",
        "reference:197:223",
        "reference:200:223",
        "reference:205:223",
        "reference:223:245"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 245,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 245,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 245,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 246,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        168,
        183,
        184,
        186,
        193,
        197,
        200,
        205,
        206,
        207,
        208,
        219,
        224,
        233
      ],
      "contributing_edge_ids": [
        "reference:168:246",
        "reference:183:246",
        "reference:184:246",
        "reference:186:246",
        "reference:193:246",
        "reference:197:246",
        "reference:200:246",
        "reference:205:246",
        "reference:206:246",
        "reference:207:246",
        "reference:208:246",
        "reference:219:246",
        "reference:224:246",
        "reference:233:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 246,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        219,
        224,
        233
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:206",
        "reference:185:206",
        "reference:186:206",
        "reference:194:206",
        "reference:197:206",
        "reference:199:206",
        "reference:200:206",
        "reference:202:206",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:184:208",
        "reference:200:208",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:168:246",
        "reference:183:246",
        "reference:184:246",
        "reference:186:246",
        "reference:193:246",
        "reference:197:246",
        "reference:200:246",
        "reference:205:246",
        "reference:206:246",
        "reference:207:246",
        "reference:208:246",
        "reference:219:246",
        "reference:224:246",
        "reference:233:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": 79,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 246,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 73,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        199,
        200,
        202,
        204,
        205,
        206,
        207,
        208,
        219,
        224,
        233
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:168:199",
        "reference:184:199",
        "reference:185:199",
        "reference:189:199",
        "reference:200:199",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:206",
        "reference:185:206",
        "reference:186:206",
        "reference:194:206",
        "reference:197:206",
        "reference:199:206",
        "reference:200:206",
        "reference:202:206",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:184:208",
        "reference:200:208",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:168:246",
        "reference:183:246",
        "reference:184:246",
        "reference:186:246",
        "reference:193:246",
        "reference:197:246",
        "reference:200:246",
        "reference:205:246",
        "reference:206:246",
        "reference:207:246",
        "reference:208:246",
        "reference:219:246",
        "reference:224:246",
        "reference:233:246"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 22,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 246,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 246,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 246,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 247,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        210,
        235,
        243,
        244
      ],
      "contributing_edge_ids": [
        "reference:210:247",
        "reference:235:247",
        "reference:243:247",
        "reference:244:247"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 247,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        186,
        193,
        197,
        200,
        207,
        210,
        211,
        230,
        232,
        234,
        235,
        237,
        240,
        243,
        244
      ],
      "contributing_edge_ids": [
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:186:235",
        "reference:232:235",
        "reference:234:235",
        "reference:237:235",
        "reference:210:243",
        "reference:234:243",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:210:247",
        "reference:235:247",
        "reference:243:247",
        "reference:244:247"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 247,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        131,
        141,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        235,
        237,
        240,
        243,
        244
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:186:235",
        "reference:232:235",
        "reference:234:235",
        "reference:237:235",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:210:243",
        "reference:234:243",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:210:247",
        "reference:235:247",
        "reference:243:247",
        "reference:244:247"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 247,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 247,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 247,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 248,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        244
      ],
      "contributing_edge_ids": [
        "reference:244:248"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 248,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:244:248"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 248,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:244:248"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 248,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 248,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 248,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 249,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 249,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 46,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 249,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 74,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 249,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        251,
        252,
        253,
        254,
        257,
        258,
        259,
        267,
        272,
        277,
        310,
        311,
        312,
        382
      ],
      "contributing_edge_ids": [
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 249,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        277,
        278,
        310,
        311,
        312,
        313,
        314,
        346,
        382
      ],
      "contributing_edge_ids": [
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:267:270",
        "reference:277:278",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 31,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 249,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        251,
        252,
        253,
        254,
        255,
        257,
        258,
        259,
        260,
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        277,
        278,
        280,
        287,
        310,
        311,
        312,
        313,
        314,
        346,
        348,
        352,
        367,
        370,
        373,
        382,
        417,
        436
      ],
      "contributing_edge_ids": [
        "reference:249:251",
        "reference:249:252",
        "reference:249:253",
        "reference:249:254",
        "reference:249:257",
        "reference:249:258",
        "reference:249:259",
        "reference:249:267",
        "reference:249:272",
        "reference:249:277",
        "reference:249:310",
        "reference:249:311",
        "reference:249:312",
        "reference:249:382",
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:252:253",
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:260:277",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:266:270",
        "reference:266:272",
        "reference:266:277",
        "reference:266:278",
        "reference:266:352",
        "reference:266:370",
        "reference:266:382",
        "reference:266:417",
        "reference:266:436",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:277:278",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 250,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        233,
        234,
        244
      ],
      "contributing_edge_ids": [
        "reference:233:250",
        "reference:234:250",
        "reference:244:250"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 250,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        168,
        193,
        194,
        197,
        200,
        202,
        207,
        209,
        210,
        233,
        234,
        237,
        244
      ],
      "contributing_edge_ids": [
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:233:250",
        "reference:234:250",
        "reference:244:250"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 250,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        233,
        234,
        237,
        240,
        244
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:233:250",
        "reference:234:250",
        "reference:244:250"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 250,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 250,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 250,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 251,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 251,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 54,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 251,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 75,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 251,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        253,
        260,
        268,
        277
      ],
      "contributing_edge_ids": [
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 251,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        253,
        260,
        268,
        272,
        273,
        277,
        278,
        287,
        311
      ],
      "contributing_edge_ids": [
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:260:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 251,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        253,
        260,
        268,
        272,
        273,
        277,
        278,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        311,
        313,
        314,
        316
      ],
      "contributing_edge_ids": [
        "reference:251:253",
        "reference:251:260",
        "reference:251:268",
        "reference:251:277",
        "reference:260:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:277:278",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 252,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        249
      ],
      "contributing_edge_ids": [
        "reference:249:252"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 252,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:252"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 252,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:252"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 252,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        253
      ],
      "contributing_edge_ids": [
        "reference:252:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 252,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        253
      ],
      "contributing_edge_ids": [
        "reference:252:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 252,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        253
      ],
      "contributing_edge_ids": [
        "reference:252:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 253,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        235,
        249,
        251,
        252
      ],
      "contributing_edge_ids": [
        "reference:235:253",
        "reference:249:253",
        "reference:251:253",
        "reference:252:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 253,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        186,
        193,
        197,
        200,
        207,
        210,
        232,
        234,
        235,
        237,
        244,
        249,
        251,
        252
      ],
      "contributing_edge_ids": [
        "reference:186:235",
        "reference:232:235",
        "reference:234:235",
        "reference:237:235",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:249:252",
        "reference:235:253",
        "reference:249:253",
        "reference:251:253",
        "reference:252:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 253,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        131,
        141,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        230,
        232,
        234,
        235,
        237,
        240,
        244,
        249,
        251,
        252
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:186:235",
        "reference:232:235",
        "reference:234:235",
        "reference:237:235",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:249:252",
        "reference:235:253",
        "reference:249:253",
        "reference:251:253",
        "reference:252:253"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 253,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 253,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 253,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 254,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:244:254",
        "reference:249:254"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 254,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:244:254",
        "reference:249:254"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 254,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:244:254",
        "reference:249:254"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 254,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        255,
        257,
        258,
        268,
        277
      ],
      "contributing_edge_ids": [
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 254,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        255,
        257,
        258,
        268,
        272,
        273,
        277,
        278,
        287,
        311
      ],
      "contributing_edge_ids": [
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 254,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        255,
        257,
        258,
        268,
        272,
        273,
        277,
        278,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        311,
        313,
        314,
        316
      ],
      "contributing_edge_ids": [
        "reference:254:255",
        "reference:254:257",
        "reference:254:258",
        "reference:254:268",
        "reference:254:277",
        "reference:258:277",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:277:278",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 255,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        254
      ],
      "contributing_edge_ids": [
        "reference:254:255"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 255,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        244,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:244:254",
        "reference:249:254",
        "reference:254:255"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 255,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:244:254",
        "reference:249:254",
        "reference:254:255"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 255,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 255,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 255,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 256,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        193
      ],
      "contributing_edge_ids": [
        "reference:193:256"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 256,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:256"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 256,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        141,
        144,
        149,
        153,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        191,
        192,
        193
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:256"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 256,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        274,
        304,
        310,
        311,
        348
      ],
      "contributing_edge_ids": [
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 256,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        274,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        346,
        348
      ],
      "contributing_edge_ids": [
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:304:309",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 256,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        274,
        304,
        309,
        310,
        311,
        312,
        313,
        314,
        346,
        348,
        352,
        367,
        373
      ],
      "contributing_edge_ids": [
        "reference:256:274",
        "reference:256:304",
        "reference:256:310",
        "reference:256:311",
        "reference:256:348",
        "reference:304:309",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 257,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        193,
        234,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:193:257",
        "reference:234:257",
        "reference:249:257",
        "reference:254:257"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 257,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        234,
        237,
        244,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:244:254",
        "reference:249:254",
        "reference:193:257",
        "reference:234:257",
        "reference:249:257",
        "reference:254:257"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 257,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:244:254",
        "reference:249:254",
        "reference:193:257",
        "reference:234:257",
        "reference:249:257",
        "reference:254:257"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 257,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 257,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 257,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 258,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        244,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:244:258",
        "reference:249:258",
        "reference:254:258"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 258,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:244:254",
        "reference:249:254",
        "reference:244:258",
        "reference:249:258",
        "reference:254:258"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 258,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        254
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:244:254",
        "reference:249:254",
        "reference:244:258",
        "reference:249:258",
        "reference:254:258"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 258,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        277
      ],
      "contributing_edge_ids": [
        "reference:258:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 258,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        277,
        278
      ],
      "contributing_edge_ids": [
        "reference:258:277",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 258,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        277,
        278
      ],
      "contributing_edge_ids": [
        "reference:258:277",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 259,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        249
      ],
      "contributing_edge_ids": [
        "reference:249:259"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 259,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 259,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 259,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        261,
        263,
        265,
        266,
        267,
        269,
        270,
        273,
        277
      ],
      "contributing_edge_ids": [
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 259,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        277,
        278,
        280,
        311,
        352,
        370,
        382,
        417,
        436
      ],
      "contributing_edge_ids": [
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:266:270",
        "reference:266:272",
        "reference:266:277",
        "reference:266:278",
        "reference:266:352",
        "reference:266:370",
        "reference:266:382",
        "reference:266:417",
        "reference:266:436",
        "reference:267:270",
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 259,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        261,
        263,
        265,
        266,
        267,
        268,
        269,
        270,
        272,
        273,
        277,
        278,
        280,
        281,
        287,
        297,
        311,
        313,
        314,
        352,
        363,
        365,
        370,
        373,
        375,
        376,
        379,
        382,
        388,
        392,
        396,
        417,
        425,
        433,
        436,
        445,
        456,
        467
      ],
      "contributing_edge_ids": [
        "reference:259:261",
        "reference:259:263",
        "reference:259:265",
        "reference:259:266",
        "reference:259:267",
        "reference:259:269",
        "reference:259:270",
        "reference:259:273",
        "reference:259:277",
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:266:270",
        "reference:266:272",
        "reference:266:277",
        "reference:266:278",
        "reference:266:352",
        "reference:266:370",
        "reference:266:382",
        "reference:266:417",
        "reference:266:436",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:277:278",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:311:313",
        "reference:311:314",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:417:467",
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 260,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        207,
        244,
        251
      ],
      "contributing_edge_ids": [
        "reference:207:260",
        "reference:244:260",
        "reference:251:260"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 260,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        185,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        210,
        234,
        237,
        244,
        249,
        251
      ],
      "contributing_edge_ids": [
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:207:260",
        "reference:244:260",
        "reference:251:260"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 260,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        23,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        251
      ],
      "contributing_edge_ids": [
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:207:260",
        "reference:244:260",
        "reference:251:260"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 260,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        277
      ],
      "contributing_edge_ids": [
        "reference:260:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 260,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        277,
        278
      ],
      "contributing_edge_ids": [
        "reference:260:277",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 260,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        277,
        278
      ],
      "contributing_edge_ids": [
        "reference:260:277",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 261,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        259,
        262,
        263
      ],
      "contributing_edge_ids": [
        "reference:259:261",
        "reference:262:261",
        "reference:263:261"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 261,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        200,
        205,
        208,
        219,
        234,
        249,
        259,
        262,
        263
      ],
      "contributing_edge_ids": [
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:234:263",
        "reference:259:263"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 261,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        189,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        219,
        234,
        237,
        244,
        249,
        259,
        262,
        263
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:208",
        "reference:200:208",
        "reference:200:219",
        "reference:205:219",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:234:263",
        "reference:259:263"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 261,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        265,
        267,
        272
      ],
      "contributing_edge_ids": [
        "reference:261:265",
        "reference:261:267",
        "reference:261:272"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 261,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        265,
        267,
        268,
        270,
        272
      ],
      "contributing_edge_ids": [
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 261,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        265,
        267,
        268,
        270,
        272,
        273,
        280,
        287,
        311
      ],
      "contributing_edge_ids": [
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:270:273",
        "reference:270:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 262,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        200,
        205,
        208,
        219
      ],
      "contributing_edge_ids": [
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 262,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        189,
        193,
        197,
        200,
        202,
        204,
        205,
        208,
        219
      ],
      "contributing_edge_ids": [
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:208",
        "reference:200:208",
        "reference:200:219",
        "reference:205:219",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 262,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 62,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        208,
        219
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:184:208",
        "reference:200:208",
        "reference:200:219",
        "reference:205:219",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 262,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        261,
        268
      ],
      "contributing_edge_ids": [
        "reference:262:261",
        "reference:262:268"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 262,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        261,
        265,
        267,
        268,
        272,
        273,
        287,
        311
      ],
      "contributing_edge_ids": [
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:262:261",
        "reference:262:268",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 262,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        261,
        265,
        267,
        268,
        270,
        272,
        273,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        311,
        313,
        314,
        316
      ],
      "contributing_edge_ids": [
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:262:261",
        "reference:262:268",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 263,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        234,
        259
      ],
      "contributing_edge_ids": [
        "reference:234:263",
        "reference:259:263"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 263,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        193,
        209,
        210,
        234,
        249,
        259
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:249:259",
        "reference:234:263",
        "reference:259:263"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 263,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        259
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:234:263",
        "reference:259:263"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 263,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        261,
        265,
        267,
        272
      ],
      "contributing_edge_ids": [
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 263,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        261,
        265,
        267,
        268,
        270,
        272
      ],
      "contributing_edge_ids": [
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 263,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        261,
        265,
        267,
        268,
        270,
        272,
        273,
        280,
        287,
        311
      ],
      "contributing_edge_ids": [
        "reference:261:265",
        "reference:261:267",
        "reference:261:272",
        "reference:263:261",
        "reference:263:265",
        "reference:263:267",
        "reference:263:272",
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:270:273",
        "reference:270:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 264,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        186
      ],
      "contributing_edge_ids": [
        "reference:186:264"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 264,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        141,
        144,
        166,
        168,
        175,
        181,
        186
      ],
      "contributing_edge_ids": [
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:186:264"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 264,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        91,
        97,
        104,
        115,
        117,
        128,
        130,
        141,
        144,
        154,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        186
      ],
      "contributing_edge_ids": [
        "reference:36:141",
        "reference:91:141",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:186:264"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 264,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 264,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 264,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 265,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        259,
        261,
        263
      ],
      "contributing_edge_ids": [
        "reference:259:265",
        "reference:261:265",
        "reference:263:265"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 265,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        234,
        249,
        259,
        261,
        262,
        263
      ],
      "contributing_edge_ids": [
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:234:263",
        "reference:259:263",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 265,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        193,
        197,
        200,
        205,
        207,
        208,
        209,
        210,
        219,
        234,
        237,
        244,
        249,
        259,
        261,
        262,
        263
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:234:263",
        "reference:259:263",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 265,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        267,
        268,
        270
      ],
      "contributing_edge_ids": [
        "reference:265:267",
        "reference:265:268",
        "reference:265:270"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 265,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        267,
        268,
        270,
        272,
        273,
        280,
        287,
        311
      ],
      "contributing_edge_ids": [
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:270:273",
        "reference:270:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 265,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        267,
        268,
        270,
        272,
        273,
        280,
        281,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        311,
        313,
        314,
        316
      ],
      "contributing_edge_ids": [
        "reference:265:267",
        "reference:265:268",
        "reference:265:270",
        "reference:267:270",
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 266,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        259
      ],
      "contributing_edge_ids": [
        "reference:259:266"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 266,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        249,
        259
      ],
      "contributing_edge_ids": [
        "reference:249:259",
        "reference:259:266"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 266,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249,
        259
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:266"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 266,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        270,
        272,
        277,
        278,
        352,
        370,
        382,
        417,
        436
      ],
      "contributing_edge_ids": [
        "reference:266:270",
        "reference:266:272",
        "reference:266:277",
        "reference:266:278",
        "reference:266:352",
        "reference:266:370",
        "reference:266:382",
        "reference:266:417",
        "reference:266:436"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 266,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        270,
        272,
        273,
        277,
        278,
        280,
        352,
        363,
        365,
        370,
        373,
        375,
        376,
        379,
        382,
        388,
        392,
        396,
        417,
        425,
        433,
        436,
        445,
        456,
        467
      ],
      "contributing_edge_ids": [
        "reference:266:270",
        "reference:266:272",
        "reference:266:277",
        "reference:266:278",
        "reference:266:352",
        "reference:266:370",
        "reference:266:382",
        "reference:266:417",
        "reference:266:436",
        "reference:270:273",
        "reference:270:280",
        "reference:277:278",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:417:467",
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 266,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        270,
        272,
        273,
        275,
        277,
        278,
        280,
        281,
        297,
        311,
        313,
        314,
        352,
        363,
        365,
        370,
        373,
        375,
        376,
        379,
        382,
        388,
        392,
        396,
        397,
        398,
        417,
        425,
        426,
        433,
        436,
        437,
        445,
        447,
        451,
        454,
        456,
        464,
        467,
        469,
        499,
        523,
        531,
        535,
        569
      ],
      "contributing_edge_ids": [
        "reference:266:270",
        "reference:266:272",
        "reference:266:277",
        "reference:266:278",
        "reference:266:352",
        "reference:266:370",
        "reference:266:382",
        "reference:266:417",
        "reference:266:436",
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:277:278",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:363:379",
        "reference:363:397",
        "reference:365:398",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:392:398",
        "reference:417:467",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 267,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        249,
        259,
        261,
        263,
        265
      ],
      "contributing_edge_ids": [
        "reference:249:267",
        "reference:259:267",
        "reference:261:267",
        "reference:263:267",
        "reference:265:267"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 267,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249,
        259,
        261,
        262,
        263,
        265
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:234:263",
        "reference:259:263",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:249:267",
        "reference:259:267",
        "reference:261:267",
        "reference:263:267",
        "reference:265:267"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 267,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        219,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        259,
        261,
        262,
        263,
        265
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:234:263",
        "reference:259:263",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:249:267",
        "reference:259:267",
        "reference:261:267",
        "reference:263:267",
        "reference:265:267"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 267,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        270
      ],
      "contributing_edge_ids": [
        "reference:267:270"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 267,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        270,
        273,
        280
      ],
      "contributing_edge_ids": [
        "reference:267:270",
        "reference:270:273",
        "reference:270:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 267,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        270,
        273,
        280,
        281,
        297,
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:267:270",
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 268,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        197,
        210,
        234,
        237,
        251,
        254,
        262,
        265
      ],
      "contributing_edge_ids": [
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 268,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        187,
        193,
        197,
        200,
        205,
        207,
        208,
        209,
        210,
        211,
        219,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        251,
        254,
        259,
        261,
        262,
        263,
        265
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 268,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        251,
        254,
        259,
        261,
        262,
        263,
        265
      ],
      "contributing_edge_ids": [
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:184:208",
        "reference:200:208",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:219",
        "reference:205:219",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:234:263",
        "reference:259:263",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 268,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        272,
        273,
        287,
        311
      ],
      "contributing_edge_ids": [
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 268,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        272,
        273,
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        311,
        313,
        314,
        316
      ],
      "contributing_edge_ids": [
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 268,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        272,
        273,
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        303,
        305,
        311,
        313,
        314,
        316
      ],
      "contributing_edge_ids": [
        "reference:268:272",
        "reference:268:273",
        "reference:268:287",
        "reference:268:311",
        "reference:273:311",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:311:313",
        "reference:311:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 269,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        259
      ],
      "contributing_edge_ids": [
        "reference:259:269"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 269,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        249,
        259
      ],
      "contributing_edge_ids": [
        "reference:249:259",
        "reference:259:269"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 269,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249,
        259
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:269"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 269,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 269,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 269,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 270,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        259,
        265,
        266,
        267
      ],
      "contributing_edge_ids": [
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 270,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        249,
        259,
        261,
        263,
        265,
        266,
        267
      ],
      "contributing_edge_ids": [
        "reference:249:259",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:259:266",
        "reference:249:267",
        "reference:259:267",
        "reference:261:267",
        "reference:263:267",
        "reference:265:267",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 270,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249,
        259,
        261,
        262,
        263,
        265,
        266,
        267
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:234:263",
        "reference:259:263",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:259:266",
        "reference:249:267",
        "reference:259:267",
        "reference:261:267",
        "reference:263:267",
        "reference:265:267",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 270,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        273,
        280
      ],
      "contributing_edge_ids": [
        "reference:270:273",
        "reference:270:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 270,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        273,
        280,
        281,
        297,
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 270,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        273,
        280,
        281,
        297,
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:270:273",
        "reference:270:280",
        "reference:273:311",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:311:313",
        "reference:311:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 271,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 271,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 271,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 271,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        280
      ],
      "contributing_edge_ids": [
        "reference:271:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 271,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        280,
        281,
        297,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:271:280",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 271,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        280,
        281,
        297,
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:271:280",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 272,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        249,
        261,
        263,
        266,
        268
      ],
      "contributing_edge_ids": [
        "reference:249:272",
        "reference:261:272",
        "reference:263:272",
        "reference:266:272",
        "reference:268:272"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 272,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        249,
        251,
        254,
        259,
        261,
        262,
        263,
        265,
        266,
        268
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:234:263",
        "reference:259:263",
        "reference:259:266",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:249:272",
        "reference:261:272",
        "reference:263:272",
        "reference:266:272",
        "reference:268:272"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 272,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        219,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        251,
        254,
        259,
        261,
        262,
        263,
        265,
        266,
        268
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:249:259",
        "reference:259:261",
        "reference:262:261",
        "reference:263:261",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:234:263",
        "reference:259:263",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:259:266",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:249:272",
        "reference:261:272",
        "reference:263:272",
        "reference:266:272",
        "reference:268:272"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 272,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 272,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 272,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 273,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        259,
        268,
        270
      ],
      "contributing_edge_ids": [
        "reference:259:273",
        "reference:268:273",
        "reference:270:273"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 273,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        197,
        210,
        234,
        237,
        249,
        251,
        254,
        259,
        262,
        265,
        266,
        267,
        268,
        270
      ],
      "contributing_edge_ids": [
        "reference:249:259",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:259:273",
        "reference:268:273",
        "reference:270:273"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 273,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        187,
        193,
        197,
        200,
        205,
        207,
        208,
        209,
        210,
        211,
        219,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        251,
        254,
        259,
        261,
        262,
        263,
        265,
        266,
        267,
        268,
        270
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:249:259",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:259:266",
        "reference:249:267",
        "reference:259:267",
        "reference:261:267",
        "reference:263:267",
        "reference:265:267",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:259:273",
        "reference:268:273",
        "reference:270:273"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 273,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        311
      ],
      "contributing_edge_ids": [
        "reference:273:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 273,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:273:311",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 273,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:273:311",
        "reference:311:313",
        "reference:311:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 274,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        2,
        256
      ],
      "contributing_edge_ids": [
        "reference:2:274",
        "reference:256:274"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 274,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        2,
        193,
        256
      ],
      "contributing_edge_ids": [
        "reference:193:256",
        "reference:2:274",
        "reference:256:274"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 274,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        2,
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        256
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:256",
        "reference:2:274",
        "reference:256:274"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 274,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 274,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 274,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 275,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        384,
        433,
        438,
        442,
        447,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 275,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        315,
        318,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        445,
        447,
        543,
        552,
        558,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:315:384",
        "reference:318:384",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 275,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 74,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        266,
        315,
        318,
        325,
        352,
        370,
        376,
        384,
        386,
        389,
        425,
        426,
        433,
        434,
        436,
        438,
        442,
        443,
        444,
        445,
        447,
        463,
        484,
        493,
        503,
        510,
        531,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        552,
        558,
        559
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:443:434",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:510:543",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 275,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        302,
        305,
        307,
        308,
        556,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 275,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        302,
        305,
        307,
        308,
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 161,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 275,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        302,
        305,
        307,
        308,
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 276,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        210,
        234
      ],
      "contributing_edge_ids": [
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 276,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": 54,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 276,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 79,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 276,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        279,
        280,
        282,
        286,
        393
      ],
      "contributing_edge_ids": [
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 276,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        279,
        280,
        281,
        282,
        286,
        297,
        313,
        314,
        372,
        393,
        526
      ],
      "contributing_edge_ids": [
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 276,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        279,
        280,
        281,
        282,
        286,
        297,
        311,
        313,
        314,
        372,
        393,
        526,
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:276:279",
        "reference:276:280",
        "reference:276:282",
        "reference:276:286",
        "reference:276:393",
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:313:314",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 277,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        193,
        234,
        237,
        249,
        251,
        254,
        258,
        259,
        260,
        266
      ],
      "contributing_edge_ids": [
        "reference:193:277",
        "reference:234:277",
        "reference:237:277",
        "reference:249:277",
        "reference:251:277",
        "reference:254:277",
        "reference:258:277",
        "reference:259:277",
        "reference:260:277",
        "reference:266:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 277,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        234,
        237,
        244,
        249,
        251,
        254,
        258,
        259,
        260,
        266
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:244:258",
        "reference:249:258",
        "reference:254:258",
        "reference:249:259",
        "reference:207:260",
        "reference:244:260",
        "reference:251:260",
        "reference:259:266",
        "reference:193:277",
        "reference:234:277",
        "reference:237:277",
        "reference:249:277",
        "reference:251:277",
        "reference:254:277",
        "reference:258:277",
        "reference:259:277",
        "reference:260:277",
        "reference:266:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 40,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 277,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        251,
        254,
        258,
        259,
        260,
        266
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:244:258",
        "reference:249:258",
        "reference:254:258",
        "reference:249:259",
        "reference:207:260",
        "reference:244:260",
        "reference:251:260",
        "reference:259:266",
        "reference:193:277",
        "reference:234:277",
        "reference:237:277",
        "reference:249:277",
        "reference:251:277",
        "reference:254:277",
        "reference:258:277",
        "reference:259:277",
        "reference:260:277",
        "reference:266:277"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 277,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        278
      ],
      "contributing_edge_ids": [
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 277,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        278
      ],
      "contributing_edge_ids": [
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 277,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        278
      ],
      "contributing_edge_ids": [
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 278,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        266,
        277
      ],
      "contributing_edge_ids": [
        "reference:266:278",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 278,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        193,
        234,
        237,
        249,
        251,
        254,
        258,
        259,
        260,
        266,
        277
      ],
      "contributing_edge_ids": [
        "reference:259:266",
        "reference:193:277",
        "reference:234:277",
        "reference:237:277",
        "reference:249:277",
        "reference:251:277",
        "reference:254:277",
        "reference:258:277",
        "reference:259:277",
        "reference:260:277",
        "reference:266:277",
        "reference:266:278",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 278,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        234,
        237,
        244,
        249,
        251,
        254,
        258,
        259,
        260,
        266,
        277
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:244:258",
        "reference:249:258",
        "reference:254:258",
        "reference:249:259",
        "reference:207:260",
        "reference:244:260",
        "reference:251:260",
        "reference:259:266",
        "reference:193:277",
        "reference:234:277",
        "reference:237:277",
        "reference:249:277",
        "reference:251:277",
        "reference:254:277",
        "reference:258:277",
        "reference:259:277",
        "reference:260:277",
        "reference:266:277",
        "reference:266:278",
        "reference:277:278"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 278,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 278,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 278,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 279,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        244,
        276
      ],
      "contributing_edge_ids": [
        "reference:244:279",
        "reference:276:279"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 279,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        144,
        168,
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        276
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 279,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        276
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 279,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        280,
        372,
        393,
        526
      ],
      "contributing_edge_ids": [
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 279,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        280,
        281,
        297,
        313,
        314,
        372,
        393,
        526,
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 279,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        280,
        281,
        297,
        311,
        313,
        314,
        372,
        393,
        526,
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:279:280",
        "reference:279:372",
        "reference:279:393",
        "reference:279:526",
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:313:314",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 280,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        197,
        237,
        244,
        270,
        271,
        276,
        279
      ],
      "contributing_edge_ids": [
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 280,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        144,
        168,
        187,
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        259,
        265,
        266,
        267,
        270,
        271,
        276,
        279
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 25,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 280,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 69,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        259,
        261,
        263,
        265,
        266,
        267,
        270,
        271,
        276,
        279
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:249:259",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:259:266",
        "reference:249:267",
        "reference:259:267",
        "reference:261:267",
        "reference:263:267",
        "reference:265:267",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 280,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        281,
        297,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 280,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        281,
        297,
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 280,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        281,
        297,
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:280:281",
        "reference:280:297",
        "reference:280:313",
        "reference:280:314",
        "reference:281:311",
        "reference:311:313",
        "reference:311:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 281,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        280
      ],
      "contributing_edge_ids": [
        "reference:280:281"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 281,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        197,
        237,
        244,
        270,
        271,
        276,
        279,
        280
      ],
      "contributing_edge_ids": [
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:280:281"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 281,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        144,
        168,
        187,
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        259,
        265,
        266,
        267,
        270,
        271,
        276,
        279,
        280
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:280:281"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 281,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        311
      ],
      "contributing_edge_ids": [
        "reference:281:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 281,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:281:311",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 281,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        311,
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:281:311",
        "reference:311:313",
        "reference:311:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 282,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        276
      ],
      "contributing_edge_ids": [
        "reference:276:282"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 282,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        210,
        234,
        276
      ],
      "contributing_edge_ids": [
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:276:282"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 282,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 52,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        276
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:276:282"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 282,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 282,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 282,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 283,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 283,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 283,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 283,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        284
      ],
      "contributing_edge_ids": [
        "reference:283:284"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 283,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        284,
        286
      ],
      "contributing_edge_ids": [
        "reference:283:284",
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 283,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        284,
        286
      ],
      "contributing_edge_ids": [
        "reference:283:284",
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 284,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        283
      ],
      "contributing_edge_ids": [
        "reference:283:284"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 284,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        283
      ],
      "contributing_edge_ids": [
        "reference:283:284"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 284,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        283
      ],
      "contributing_edge_ids": [
        "reference:283:284"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 284,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        286
      ],
      "contributing_edge_ids": [
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 284,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        286
      ],
      "contributing_edge_ids": [
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 284,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        286
      ],
      "contributing_edge_ids": [
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 285,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234
      ],
      "contributing_edge_ids": [
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 285,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 47,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 285,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 75,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 285,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        287,
        291,
        297
      ],
      "contributing_edge_ids": [
        "reference:285:287",
        "reference:285:291",
        "reference:285:297"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 285,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        287,
        289,
        291,
        293,
        297,
        300,
        302,
        316
      ],
      "contributing_edge_ids": [
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:291:293",
        "reference:291:297"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 285,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        287,
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        303,
        305,
        316
      ],
      "contributing_edge_ids": [
        "reference:285:287",
        "reference:285:291",
        "reference:285:297",
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 286,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        276,
        284
      ],
      "contributing_edge_ids": [
        "reference:276:286",
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 286,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        210,
        234,
        276,
        283,
        284
      ],
      "contributing_edge_ids": [
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:283:284",
        "reference:276:286",
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 286,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        276,
        283,
        284
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:283:284",
        "reference:276:286",
        "reference:284:286"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 286,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 286,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 286,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 287,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        244,
        268,
        285,
        289
      ],
      "contributing_edge_ids": [
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 287,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        168,
        193,
        197,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        237,
        244,
        251,
        254,
        262,
        265,
        268,
        285,
        289
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 29,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 287,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        251,
        254,
        259,
        261,
        262,
        263,
        265,
        268,
        285,
        289
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 287,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        289,
        291,
        293,
        297,
        300,
        302,
        316
      ],
      "contributing_edge_ids": [
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 287,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        303,
        305,
        316
      ],
      "contributing_edge_ids": [
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 287,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        289,
        291,
        292,
        293,
        297,
        300,
        302,
        303,
        305,
        307,
        308,
        316
      ],
      "contributing_edge_ids": [
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 288,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 288,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 288,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 288,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        349
      ],
      "contributing_edge_ids": [
        "reference:288:349"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 288,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        349
      ],
      "contributing_edge_ids": [
        "reference:288:349"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 288,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        349
      ],
      "contributing_edge_ids": [
        "reference:288:349"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 289,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        168,
        200,
        234,
        244,
        287
      ],
      "contributing_edge_ids": [
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 289,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        193,
        197,
        200,
        207,
        209,
        210,
        234,
        237,
        244,
        268,
        285,
        287
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 289,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 70,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        230,
        232,
        234,
        237,
        240,
        244,
        251,
        254,
        262,
        265,
        268,
        285,
        287
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 289,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        287,
        292
      ],
      "contributing_edge_ids": [
        "reference:289:287",
        "reference:289:292"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 289,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        287,
        291,
        292,
        293,
        297,
        300,
        302,
        316
      ],
      "contributing_edge_ids": [
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 289,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        287,
        291,
        292,
        293,
        297,
        300,
        302,
        303,
        305,
        316
      ],
      "contributing_edge_ids": [
        "reference:287:289",
        "reference:287:291",
        "reference:287:293",
        "reference:287:297",
        "reference:287:300",
        "reference:287:302",
        "reference:287:316",
        "reference:289:287",
        "reference:289:292",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 290,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 290,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 290,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 290,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        291,
        292,
        293,
        297
      ],
      "contributing_edge_ids": [
        "reference:290:291",
        "reference:290:292",
        "reference:290:293",
        "reference:290:297"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 290,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        291,
        292,
        293,
        297,
        303
      ],
      "contributing_edge_ids": [
        "reference:290:291",
        "reference:290:292",
        "reference:290:293",
        "reference:290:297",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 290,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        291,
        292,
        293,
        297,
        303
      ],
      "contributing_edge_ids": [
        "reference:290:291",
        "reference:290:292",
        "reference:290:293",
        "reference:290:297",
        "reference:291:293",
        "reference:291:297",
        "reference:293:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 291,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        285,
        287,
        290
      ],
      "contributing_edge_ids": [
        "reference:285:291",
        "reference:287:291",
        "reference:290:291"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 291,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        244,
        268,
        285,
        287,
        289,
        290
      ],
      "contributing_edge_ids": [
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:285:291",
        "reference:287:291",
        "reference:290:291"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 291,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        251,
        254,
        262,
        265,
        268,
        285,
        287,
        289,
        290
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:285:291",
        "reference:287:291",
        "reference:290:291"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 291,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        293,
        297
      ],
      "contributing_edge_ids": [
        "reference:291:293",
        "reference:291:297"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 291,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        293,
        297,
        303
      ],
      "contributing_edge_ids": [
        "reference:291:293",
        "reference:291:297",
        "reference:293:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 291,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        293,
        297,
        303
      ],
      "contributing_edge_ids": [
        "reference:291:293",
        "reference:291:297",
        "reference:293:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 292,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        289,
        290
      ],
      "contributing_edge_ids": [
        "reference:289:292",
        "reference:290:292"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 292,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        168,
        200,
        234,
        244,
        287,
        289,
        290
      ],
      "contributing_edge_ids": [
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:289:292",
        "reference:290:292"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 292,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        193,
        197,
        200,
        207,
        209,
        210,
        234,
        237,
        244,
        268,
        285,
        287,
        289,
        290
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:289:292",
        "reference:290:292"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 292,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 292,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 292,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 293,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        287,
        290,
        291
      ],
      "contributing_edge_ids": [
        "reference:287:293",
        "reference:290:293",
        "reference:291:293"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 293,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        244,
        268,
        285,
        287,
        289,
        290,
        291
      ],
      "contributing_edge_ids": [
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:285:291",
        "reference:287:291",
        "reference:290:291",
        "reference:287:293",
        "reference:290:293",
        "reference:291:293"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 293,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        168,
        193,
        197,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        237,
        244,
        251,
        254,
        262,
        265,
        268,
        285,
        287,
        289,
        290,
        291
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:285:291",
        "reference:287:291",
        "reference:290:291",
        "reference:287:293",
        "reference:290:293",
        "reference:291:293"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 293,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        303
      ],
      "contributing_edge_ids": [
        "reference:293:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 293,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        303
      ],
      "contributing_edge_ids": [
        "reference:293:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 293,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        303
      ],
      "contributing_edge_ids": [
        "reference:293:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 294,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 294,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 294,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 294,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        301,
        302
      ],
      "contributing_edge_ids": [
        "reference:294:301",
        "reference:294:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 294,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        301,
        302
      ],
      "contributing_edge_ids": [
        "reference:294:301",
        "reference:294:302",
        "reference:301:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 294,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        301,
        302
      ],
      "contributing_edge_ids": [
        "reference:294:301",
        "reference:294:302",
        "reference:301:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 295,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 295,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 295,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 295,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        297,
        300
      ],
      "contributing_edge_ids": [
        "reference:295:297",
        "reference:295:300"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 295,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        297,
        300,
        302,
        303,
        305
      ],
      "contributing_edge_ids": [
        "reference:295:297",
        "reference:295:300",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 295,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        297,
        300,
        302,
        303,
        305,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:295:297",
        "reference:295:300",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 296,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        168,
        200
      ],
      "contributing_edge_ids": [
        "reference:168:296",
        "reference:200:296"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 296,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:296",
        "reference:200:296"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 296,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        189,
        200
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:296",
        "reference:200:296"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 296,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        300,
        305
      ],
      "contributing_edge_ids": [
        "reference:296:300",
        "reference:296:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 296,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        300,
        302,
        303,
        305,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:296:300",
        "reference:296:305",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 296,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        300,
        302,
        303,
        305,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:296:300",
        "reference:296:305",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 297,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        280,
        285,
        287,
        290,
        291,
        295
      ],
      "contributing_edge_ids": [
        "reference:280:297",
        "reference:285:297",
        "reference:287:297",
        "reference:290:297",
        "reference:291:297",
        "reference:295:297"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 297,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        168,
        193,
        197,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        237,
        244,
        268,
        270,
        271,
        276,
        279,
        280,
        285,
        287,
        289,
        290,
        291,
        295
      ],
      "contributing_edge_ids": [
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:285:291",
        "reference:287:291",
        "reference:290:291",
        "reference:280:297",
        "reference:285:297",
        "reference:287:297",
        "reference:290:297",
        "reference:291:297",
        "reference:295:297"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 23,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 297,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        251,
        254,
        259,
        262,
        265,
        266,
        267,
        268,
        270,
        271,
        276,
        279,
        280,
        285,
        287,
        289,
        290,
        291,
        295
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:285:291",
        "reference:287:291",
        "reference:290:291",
        "reference:280:297",
        "reference:285:297",
        "reference:287:297",
        "reference:290:297",
        "reference:291:297",
        "reference:295:297"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 297,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 297,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 297,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 298,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 298,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 298,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 298,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 298,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 298,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 299,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 299,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 299,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 299,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        300,
        301,
        302
      ],
      "contributing_edge_ids": [
        "reference:299:300",
        "reference:299:301",
        "reference:299:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 299,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        300,
        301,
        302,
        303,
        305
      ],
      "contributing_edge_ids": [
        "reference:299:300",
        "reference:299:301",
        "reference:299:302",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:301:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 299,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        300,
        301,
        302,
        303,
        305,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:299:300",
        "reference:299:301",
        "reference:299:302",
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:301:302",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 300,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        287,
        295,
        296,
        299
      ],
      "contributing_edge_ids": [
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 300,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        168,
        200,
        244,
        268,
        285,
        287,
        289,
        295,
        296,
        299
      ],
      "contributing_edge_ids": [
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 300,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        193,
        197,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        237,
        244,
        251,
        254,
        262,
        265,
        268,
        285,
        287,
        289,
        295,
        296,
        299
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 300,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        302,
        303,
        305
      ],
      "contributing_edge_ids": [
        "reference:300:302",
        "reference:300:303",
        "reference:300:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 300,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        302,
        303,
        305,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 300,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        302,
        303,
        305,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:300:302",
        "reference:300:303",
        "reference:300:305",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 301,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        294,
        299
      ],
      "contributing_edge_ids": [
        "reference:294:301",
        "reference:299:301"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 301,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        294,
        299
      ],
      "contributing_edge_ids": [
        "reference:294:301",
        "reference:299:301"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 301,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        294,
        299
      ],
      "contributing_edge_ids": [
        "reference:294:301",
        "reference:299:301"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 301,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:301:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 301,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:301:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 301,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:301:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 302,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        275,
        287,
        294,
        299,
        300,
        301,
        305,
        306,
        315,
        320,
        322,
        323,
        325
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:287:302",
        "reference:294:302",
        "reference:299:302",
        "reference:300:302",
        "reference:301:302",
        "reference:305:302",
        "reference:306:302",
        "reference:315:302",
        "reference:320:302",
        "reference:322:302",
        "reference:323:302",
        "reference:325:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 302,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        244,
        268,
        275,
        285,
        287,
        289,
        294,
        295,
        296,
        299,
        300,
        301,
        305,
        306,
        315,
        318,
        320,
        322,
        323,
        325,
        384,
        433,
        438,
        442,
        447,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:294:301",
        "reference:299:301",
        "reference:275:302",
        "reference:287:302",
        "reference:294:302",
        "reference:299:302",
        "reference:300:302",
        "reference:301:302",
        "reference:305:302",
        "reference:306:302",
        "reference:315:302",
        "reference:320:302",
        "reference:322:302",
        "reference:323:302",
        "reference:325:302",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:320",
        "reference:318:320",
        "reference:315:323",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 41,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 302,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 97,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        251,
        254,
        262,
        265,
        268,
        275,
        285,
        287,
        289,
        294,
        295,
        296,
        299,
        300,
        301,
        305,
        306,
        315,
        318,
        320,
        322,
        323,
        325,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        445,
        447,
        543,
        552,
        558,
        559
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:294:301",
        "reference:299:301",
        "reference:275:302",
        "reference:287:302",
        "reference:294:302",
        "reference:299:302",
        "reference:300:302",
        "reference:301:302",
        "reference:305:302",
        "reference:306:302",
        "reference:315:302",
        "reference:320:302",
        "reference:322:302",
        "reference:323:302",
        "reference:325:302",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:320",
        "reference:318:320",
        "reference:315:323",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:315:384",
        "reference:318:384",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 26,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 302,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 302,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 302,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 303,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        293,
        300
      ],
      "contributing_edge_ids": [
        "reference:293:303",
        "reference:300:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 303,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        287,
        290,
        291,
        293,
        295,
        296,
        299,
        300
      ],
      "contributing_edge_ids": [
        "reference:287:293",
        "reference:290:293",
        "reference:291:293",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:293:303",
        "reference:300:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 303,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        168,
        200,
        244,
        268,
        285,
        287,
        289,
        290,
        291,
        293,
        295,
        296,
        299,
        300
      ],
      "contributing_edge_ids": [
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:285:291",
        "reference:287:291",
        "reference:290:291",
        "reference:287:293",
        "reference:290:293",
        "reference:291:293",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:293:303",
        "reference:300:303"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 303,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 303,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 303,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 304,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        168,
        184,
        193,
        194,
        200,
        202,
        233,
        256
      ],
      "contributing_edge_ids": [
        "reference:168:304",
        "reference:184:304",
        "reference:193:304",
        "reference:194:304",
        "reference:200:304",
        "reference:202:304",
        "reference:233:304",
        "reference:256:304"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 304,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200,
        202,
        233,
        256
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:256",
        "reference:168:304",
        "reference:184:304",
        "reference:193:304",
        "reference:194:304",
        "reference:200:304",
        "reference:202:304",
        "reference:233:304",
        "reference:256:304"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 57,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 304,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 63,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200,
        202,
        233,
        256
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:256",
        "reference:168:304",
        "reference:184:304",
        "reference:193:304",
        "reference:194:304",
        "reference:200:304",
        "reference:202:304",
        "reference:233:304",
        "reference:256:304"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 304,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        309
      ],
      "contributing_edge_ids": [
        "reference:304:309"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 304,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        309,
        310,
        311
      ],
      "contributing_edge_ids": [
        "reference:304:309",
        "reference:309:310",
        "reference:309:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 304,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        309,
        310,
        311,
        312,
        313,
        314,
        346
      ],
      "contributing_edge_ids": [
        "reference:304:309",
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 305,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        275,
        296,
        300
      ],
      "contributing_edge_ids": [
        "reference:275:305",
        "reference:296:305",
        "reference:300:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 305,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        168,
        200,
        275,
        287,
        295,
        296,
        299,
        300,
        384,
        433,
        438,
        442,
        447,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 305,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        117,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        189,
        200,
        244,
        268,
        275,
        285,
        287,
        289,
        295,
        296,
        299,
        300,
        315,
        318,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        445,
        447,
        543,
        552,
        558,
        559
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305",
        "reference:315:384",
        "reference:318:384",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 305,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        302,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:305:302",
        "reference:305:307",
        "reference:305:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 305,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        302,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 305,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        302,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 306,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 306,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 306,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 306,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        302,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:306:302",
        "reference:306:307",
        "reference:306:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 306,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        302,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:306:302",
        "reference:306:307",
        "reference:306:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 306,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        302,
        307,
        308
      ],
      "contributing_edge_ids": [
        "reference:306:302",
        "reference:306:307",
        "reference:306:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 307,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        275,
        305,
        306
      ],
      "contributing_edge_ids": [
        "reference:275:307",
        "reference:305:307",
        "reference:306:307"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 307,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        275,
        296,
        300,
        305,
        306,
        384,
        433,
        438,
        442,
        447,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305",
        "reference:275:307",
        "reference:305:307",
        "reference:306:307"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 307,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        168,
        200,
        275,
        287,
        295,
        296,
        299,
        300,
        305,
        306,
        315,
        318,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        445,
        447,
        543,
        552,
        558,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305",
        "reference:275:307",
        "reference:305:307",
        "reference:306:307",
        "reference:315:384",
        "reference:318:384",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 307,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        308
      ],
      "contributing_edge_ids": [
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 307,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        308
      ],
      "contributing_edge_ids": [
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 307,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        308
      ],
      "contributing_edge_ids": [
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 308,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        275,
        305,
        306,
        307
      ],
      "contributing_edge_ids": [
        "reference:275:308",
        "reference:305:308",
        "reference:306:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 308,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        275,
        296,
        300,
        305,
        306,
        307,
        384,
        433,
        438,
        442,
        447,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305",
        "reference:275:307",
        "reference:305:307",
        "reference:306:307",
        "reference:275:308",
        "reference:305:308",
        "reference:306:308",
        "reference:307:308"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 308,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        168,
        200,
        275,
        287,
        295,
        296,
        299,
        300,
        305,
        306,
        307,
        315,
        318,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        445,
        447,
        543,
        552,
        558,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:168:296",
        "reference:200:296",
        "reference:287:300",
        "reference:295:300",
        "reference:296:300",
        "reference:299:300",
        "reference:275:305",
        "reference:296:305",
        "reference:300:305",
        "reference:275:307",
        "reference:305:307",
        "reference:306:307",
        "reference:275:308",
        "reference:305:308",
        "reference:306:308",
        "reference:307:308",
        "reference:315:384",
        "reference:318:384",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 308,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 308,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 308,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 309,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        304
      ],
      "contributing_edge_ids": [
        "reference:304:309"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 309,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        168,
        184,
        193,
        194,
        200,
        202,
        233,
        256,
        304
      ],
      "contributing_edge_ids": [
        "reference:168:304",
        "reference:184:304",
        "reference:193:304",
        "reference:194:304",
        "reference:200:304",
        "reference:202:304",
        "reference:233:304",
        "reference:256:304",
        "reference:304:309"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 309,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        200,
        202,
        233,
        256,
        304
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:256",
        "reference:168:304",
        "reference:184:304",
        "reference:193:304",
        "reference:194:304",
        "reference:200:304",
        "reference:202:304",
        "reference:233:304",
        "reference:256:304",
        "reference:304:309"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 309,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        310,
        311
      ],
      "contributing_edge_ids": [
        "reference:309:310",
        "reference:309:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 309,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        310,
        311,
        312,
        313,
        314,
        346
      ],
      "contributing_edge_ids": [
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 309,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        310,
        311,
        312,
        313,
        314,
        346,
        348,
        352,
        367,
        373
      ],
      "contributing_edge_ids": [
        "reference:309:310",
        "reference:309:311",
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 310,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        233,
        249,
        256,
        309
      ],
      "contributing_edge_ids": [
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 310,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        168,
        193,
        194,
        197,
        200,
        202,
        207,
        210,
        233,
        234,
        237,
        244,
        249,
        256,
        304,
        309
      ],
      "contributing_edge_ids": [
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:256",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 310,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        233,
        234,
        237,
        240,
        244,
        249,
        256,
        304,
        309
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:256",
        "reference:168:304",
        "reference:184:304",
        "reference:193:304",
        "reference:194:304",
        "reference:200:304",
        "reference:202:304",
        "reference:233:304",
        "reference:256:304",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 310,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        311,
        312,
        313,
        314,
        346
      ],
      "contributing_edge_ids": [
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 310,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        311,
        312,
        313,
        314,
        346,
        348,
        352,
        367,
        373
      ],
      "contributing_edge_ids": [
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 310,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        311,
        312,
        313,
        314,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        392,
        452
      ],
      "contributing_edge_ids": [
        "reference:310:311",
        "reference:310:312",
        "reference:310:313",
        "reference:310:314",
        "reference:310:346",
        "reference:311:313",
        "reference:311:314",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:367:452",
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 311,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        233,
        249,
        256,
        268,
        273,
        281,
        309,
        310
      ],
      "contributing_edge_ids": [
        "reference:233:311",
        "reference:249:311",
        "reference:256:311",
        "reference:268:311",
        "reference:273:311",
        "reference:281:311",
        "reference:309:311",
        "reference:310:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 311,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        168,
        193,
        194,
        197,
        200,
        202,
        207,
        210,
        233,
        234,
        237,
        244,
        249,
        251,
        254,
        256,
        259,
        262,
        265,
        268,
        270,
        273,
        280,
        281,
        304,
        309,
        310
      ],
      "contributing_edge_ids": [
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:256",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:259:273",
        "reference:268:273",
        "reference:270:273",
        "reference:280:281",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:233:311",
        "reference:249:311",
        "reference:256:311",
        "reference:268:311",
        "reference:273:311",
        "reference:281:311",
        "reference:309:311",
        "reference:310:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 311,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        117,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        219,
        230,
        232,
        233,
        234,
        237,
        240,
        244,
        249,
        251,
        254,
        256,
        259,
        261,
        262,
        263,
        265,
        266,
        267,
        268,
        270,
        271,
        273,
        276,
        279,
        280,
        281,
        304,
        309,
        310
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:251",
        "reference:197:251",
        "reference:200:251",
        "reference:207:251",
        "reference:210:251",
        "reference:234:251",
        "reference:237:251",
        "reference:244:251",
        "reference:249:251",
        "reference:244:254",
        "reference:249:254",
        "reference:193:256",
        "reference:249:259",
        "reference:200:262",
        "reference:205:262",
        "reference:208:262",
        "reference:219:262",
        "reference:259:265",
        "reference:261:265",
        "reference:263:265",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:259:273",
        "reference:268:273",
        "reference:270:273",
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:280:281",
        "reference:168:304",
        "reference:184:304",
        "reference:193:304",
        "reference:194:304",
        "reference:200:304",
        "reference:202:304",
        "reference:233:304",
        "reference:256:304",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:233:311",
        "reference:249:311",
        "reference:256:311",
        "reference:268:311",
        "reference:273:311",
        "reference:281:311",
        "reference:309:311",
        "reference:310:311"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 311,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:311:313",
        "reference:311:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 311,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:311:313",
        "reference:311:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 311,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:311:313",
        "reference:311:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 312,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        249,
        310,
        318
      ],
      "contributing_edge_ids": [
        "reference:249:312",
        "reference:310:312",
        "reference:318:312"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 312,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        193,
        197,
        200,
        207,
        210,
        233,
        234,
        237,
        244,
        249,
        256,
        309,
        310,
        318
      ],
      "contributing_edge_ids": [
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:249:312",
        "reference:310:312",
        "reference:318:312"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 312,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        230,
        232,
        233,
        234,
        237,
        240,
        244,
        249,
        256,
        304,
        309,
        310,
        318
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:256",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:249:312",
        "reference:310:312",
        "reference:318:312"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 312,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:312:313",
        "reference:312:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 312,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:312:313",
        "reference:312:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 312,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        313,
        314
      ],
      "contributing_edge_ids": [
        "reference:312:313",
        "reference:312:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 313,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        280,
        310,
        311,
        312
      ],
      "contributing_edge_ids": [
        "reference:280:313",
        "reference:310:313",
        "reference:311:313",
        "reference:312:313"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 313,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        197,
        233,
        237,
        244,
        249,
        256,
        268,
        270,
        271,
        273,
        276,
        279,
        280,
        281,
        309,
        310,
        311,
        312,
        318
      ],
      "contributing_edge_ids": [
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:233:311",
        "reference:249:311",
        "reference:256:311",
        "reference:268:311",
        "reference:273:311",
        "reference:281:311",
        "reference:309:311",
        "reference:310:311",
        "reference:249:312",
        "reference:310:312",
        "reference:318:312",
        "reference:280:313",
        "reference:310:313",
        "reference:311:313",
        "reference:312:313"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 313,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        144,
        168,
        187,
        193,
        194,
        197,
        200,
        202,
        207,
        210,
        233,
        234,
        237,
        244,
        249,
        251,
        254,
        256,
        259,
        262,
        265,
        266,
        267,
        268,
        270,
        271,
        273,
        276,
        279,
        280,
        281,
        304,
        309,
        310,
        311,
        312,
        318
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:256",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:259:273",
        "reference:268:273",
        "reference:270:273",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:280:281",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:233:311",
        "reference:249:311",
        "reference:256:311",
        "reference:268:311",
        "reference:273:311",
        "reference:281:311",
        "reference:309:311",
        "reference:310:311",
        "reference:249:312",
        "reference:310:312",
        "reference:318:312",
        "reference:280:313",
        "reference:310:313",
        "reference:311:313",
        "reference:312:313"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 313,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        314
      ],
      "contributing_edge_ids": [
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 313,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        314
      ],
      "contributing_edge_ids": [
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 313,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        314
      ],
      "contributing_edge_ids": [
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 314,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        280,
        310,
        311,
        312,
        313
      ],
      "contributing_edge_ids": [
        "reference:280:314",
        "reference:310:314",
        "reference:311:314",
        "reference:312:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 314,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        197,
        233,
        237,
        244,
        249,
        256,
        268,
        270,
        271,
        273,
        276,
        279,
        280,
        281,
        309,
        310,
        311,
        312,
        313,
        318
      ],
      "contributing_edge_ids": [
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:233:311",
        "reference:249:311",
        "reference:256:311",
        "reference:268:311",
        "reference:273:311",
        "reference:281:311",
        "reference:309:311",
        "reference:310:311",
        "reference:249:312",
        "reference:310:312",
        "reference:318:312",
        "reference:280:313",
        "reference:310:313",
        "reference:311:313",
        "reference:312:313",
        "reference:280:314",
        "reference:310:314",
        "reference:311:314",
        "reference:312:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 26,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 314,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        144,
        168,
        187,
        193,
        194,
        197,
        200,
        202,
        207,
        210,
        233,
        234,
        237,
        244,
        249,
        251,
        254,
        256,
        259,
        262,
        265,
        266,
        267,
        268,
        270,
        271,
        273,
        276,
        279,
        280,
        281,
        304,
        309,
        310,
        311,
        312,
        313,
        318
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:256",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:259:270",
        "reference:265:270",
        "reference:266:270",
        "reference:267:270",
        "reference:259:273",
        "reference:268:273",
        "reference:270:273",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:197:280",
        "reference:237:280",
        "reference:244:280",
        "reference:270:280",
        "reference:271:280",
        "reference:276:280",
        "reference:279:280",
        "reference:280:281",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:233:311",
        "reference:249:311",
        "reference:256:311",
        "reference:268:311",
        "reference:273:311",
        "reference:281:311",
        "reference:309:311",
        "reference:310:311",
        "reference:249:312",
        "reference:310:312",
        "reference:318:312",
        "reference:280:313",
        "reference:310:313",
        "reference:311:313",
        "reference:312:313",
        "reference:280:314",
        "reference:310:314",
        "reference:311:314",
        "reference:312:314",
        "reference:313:314"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 314,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 314,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 314,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 315,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 315,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": 73,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 315,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 82,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 315,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        302,
        316,
        320,
        321,
        323,
        348,
        352,
        370,
        373,
        382,
        384,
        394,
        398,
        399,
        402,
        436
      ],
      "contributing_edge_ids": [
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 315,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        275,
        302,
        316,
        320,
        321,
        323,
        348,
        352,
        363,
        365,
        370,
        373,
        375,
        376,
        379,
        382,
        384,
        388,
        392,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        425,
        433,
        436,
        445,
        456
      ],
      "contributing_edge_ids": [
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 315,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 63,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        316,
        320,
        321,
        323,
        348,
        352,
        363,
        365,
        370,
        373,
        375,
        376,
        379,
        382,
        384,
        388,
        392,
        394,
        395,
        396,
        397,
        398,
        399,
        402,
        405,
        406,
        425,
        426,
        430,
        433,
        436,
        437,
        445,
        447,
        451,
        454,
        456,
        464,
        469,
        499,
        523,
        531,
        535,
        556,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:315:302",
        "reference:315:316",
        "reference:315:320",
        "reference:315:321",
        "reference:315:323",
        "reference:315:348",
        "reference:315:352",
        "reference:315:370",
        "reference:315:373",
        "reference:315:382",
        "reference:315:384",
        "reference:315:394",
        "reference:315:398",
        "reference:315:399",
        "reference:315:402",
        "reference:315:436",
        "reference:320:302",
        "reference:320:321",
        "reference:323:302",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:363:379",
        "reference:363:397",
        "reference:365:398",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:384:275",
        "reference:384:398",
        "reference:388:376",
        "reference:392:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:406:430",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 316,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        244,
        287,
        315
      ],
      "contributing_edge_ids": [
        "reference:244:316",
        "reference:287:316",
        "reference:315:316"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 316,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        144,
        168,
        193,
        197,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        237,
        244,
        268,
        285,
        287,
        289,
        315
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:244:316",
        "reference:287:316",
        "reference:315:316"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 316,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 69,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        251,
        254,
        262,
        265,
        268,
        285,
        287,
        289,
        315
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:197:268",
        "reference:210:268",
        "reference:234:268",
        "reference:237:268",
        "reference:251:268",
        "reference:254:268",
        "reference:262:268",
        "reference:265:268",
        "reference:168:285",
        "reference:193:285",
        "reference:200:285",
        "reference:207:285",
        "reference:210:285",
        "reference:211:285",
        "reference:216:285",
        "reference:230:285",
        "reference:234:285",
        "reference:244:287",
        "reference:268:287",
        "reference:285:287",
        "reference:289:287",
        "reference:168:289",
        "reference:200:289",
        "reference:234:289",
        "reference:244:289",
        "reference:287:289",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:244:316",
        "reference:287:316",
        "reference:315:316"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 22,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 316,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 316,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 316,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 317,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 317,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 317,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 317,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        319
      ],
      "contributing_edge_ids": [
        "reference:317:319"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 317,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        319
      ],
      "contributing_edge_ids": [
        "reference:317:319"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 317,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        319
      ],
      "contributing_edge_ids": [
        "reference:317:319"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 318,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 318,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 318,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 318,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        312,
        320,
        329,
        348,
        349,
        354,
        359,
        361,
        366,
        368,
        369,
        378,
        382,
        384,
        394,
        399,
        402,
        407,
        417
      ],
      "contributing_edge_ids": [
        "reference:318:312",
        "reference:318:320",
        "reference:318:329",
        "reference:318:348",
        "reference:318:349",
        "reference:318:354",
        "reference:318:359",
        "reference:318:361",
        "reference:318:366",
        "reference:318:368",
        "reference:318:369",
        "reference:318:378",
        "reference:318:382",
        "reference:318:384",
        "reference:318:394",
        "reference:318:399",
        "reference:318:402",
        "reference:318:407",
        "reference:318:417"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 318,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        275,
        302,
        312,
        313,
        314,
        320,
        321,
        329,
        348,
        349,
        354,
        359,
        361,
        366,
        368,
        369,
        372,
        378,
        382,
        384,
        394,
        395,
        398,
        399,
        402,
        405,
        406,
        407,
        417,
        467,
        477,
        550,
        585
      ],
      "contributing_edge_ids": [
        "reference:312:313",
        "reference:312:314",
        "reference:318:312",
        "reference:318:320",
        "reference:318:329",
        "reference:318:348",
        "reference:318:349",
        "reference:318:354",
        "reference:318:359",
        "reference:318:361",
        "reference:318:366",
        "reference:318:368",
        "reference:318:369",
        "reference:318:378",
        "reference:318:382",
        "reference:318:384",
        "reference:318:394",
        "reference:318:399",
        "reference:318:402",
        "reference:318:407",
        "reference:318:417",
        "reference:320:302",
        "reference:320:321",
        "reference:361:550",
        "reference:361:585",
        "reference:366:368",
        "reference:366:369",
        "reference:368:477",
        "reference:369:372",
        "reference:378:398",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:402:405",
        "reference:402:406",
        "reference:417:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 318,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        312,
        313,
        314,
        320,
        321,
        329,
        348,
        349,
        354,
        359,
        361,
        366,
        368,
        369,
        372,
        378,
        382,
        384,
        394,
        395,
        396,
        398,
        399,
        402,
        405,
        406,
        407,
        417,
        430,
        467,
        473,
        477,
        550,
        556,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        585,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        605
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:312:313",
        "reference:312:314",
        "reference:313:314",
        "reference:318:312",
        "reference:318:320",
        "reference:318:329",
        "reference:318:348",
        "reference:318:349",
        "reference:318:354",
        "reference:318:359",
        "reference:318:361",
        "reference:318:366",
        "reference:318:368",
        "reference:318:369",
        "reference:318:378",
        "reference:318:382",
        "reference:318:384",
        "reference:318:394",
        "reference:318:399",
        "reference:318:402",
        "reference:318:407",
        "reference:318:417",
        "reference:320:302",
        "reference:320:321",
        "reference:361:550",
        "reference:361:585",
        "reference:366:368",
        "reference:366:369",
        "reference:368:477",
        "reference:369:372",
        "reference:378:398",
        "reference:384:275",
        "reference:384:398",
        "reference:394:395",
        "reference:398:396",
        "reference:402:405",
        "reference:402:406",
        "reference:406:430",
        "reference:417:467",
        "reference:477:473",
        "reference:550:556",
        "reference:550:568",
        "reference:550:569",
        "reference:550:574",
        "reference:550:576",
        "reference:550:578",
        "reference:550:582",
        "reference:550:584",
        "reference:550:588",
        "reference:550:591",
        "reference:550:592",
        "reference:550:596",
        "reference:550:600",
        "reference:550:601",
        "reference:550:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 319,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        317
      ],
      "contributing_edge_ids": [
        "reference:317:319"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 319,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        317
      ],
      "contributing_edge_ids": [
        "reference:317:319"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 319,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        317
      ],
      "contributing_edge_ids": [
        "reference:317:319"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 319,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 319,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 319,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 320,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:315:320",
        "reference:318:320"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 320,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:320",
        "reference:318:320"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 320,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:320",
        "reference:318:320"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 320,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        302,
        321
      ],
      "contributing_edge_ids": [
        "reference:320:302",
        "reference:320:321"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 320,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        302,
        321
      ],
      "contributing_edge_ids": [
        "reference:320:302",
        "reference:320:321"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 320,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        302,
        321
      ],
      "contributing_edge_ids": [
        "reference:320:302",
        "reference:320:321"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 321,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        315,
        320
      ],
      "contributing_edge_ids": [
        "reference:315:321",
        "reference:320:321"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 321,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318,
        320
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:320",
        "reference:318:320",
        "reference:315:321",
        "reference:320:321"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 321,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        315,
        318,
        320
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:320",
        "reference:318:320",
        "reference:315:321",
        "reference:320:321"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 321,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 321,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 321,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 322,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 322,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 322,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 322,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:322:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 322,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:322:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 322,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:322:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 323,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        315
      ],
      "contributing_edge_ids": [
        "reference:315:323"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 323,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:323"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 323,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        315
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:323"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 323,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:323:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 323,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:323:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 323,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        302
      ],
      "contributing_edge_ids": [
        "reference:323:302"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 324,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 324,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 324,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 324,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 324,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 324,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 325,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        144,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234
      ],
      "contributing_edge_ids": [
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 325,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": 72,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 325,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 82,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        208,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:192",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:23:204",
        "reference:184:204",
        "reference:185:204",
        "reference:186:204",
        "reference:187:204",
        "reference:200:204",
        "reference:168:205",
        "reference:185:205",
        "reference:193:205",
        "reference:197:205",
        "reference:200:205",
        "reference:202:205",
        "reference:204:205",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:219",
        "reference:205:219",
        "reference:184:224",
        "reference:193:224",
        "reference:208:224",
        "reference:219:224",
        "reference:185:227",
        "reference:197:227",
        "reference:200:227",
        "reference:202:227",
        "reference:207:227",
        "reference:210:227",
        "reference:211:227",
        "reference:216:227",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:219:232",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:210:240",
        "reference:234:240",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 325,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        302,
        340,
        346,
        348,
        352,
        370,
        373
      ],
      "contributing_edge_ids": [
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 325,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        302,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        376,
        379,
        388,
        392,
        396,
        425,
        433
      ],
      "contributing_edge_ids": [
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 325,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        275,
        302,
        340,
        346,
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        376,
        379,
        388,
        392,
        396,
        397,
        398,
        425,
        426,
        433,
        437,
        451,
        452,
        454,
        456,
        499,
        523,
        531,
        535,
        569
      ],
      "contributing_edge_ids": [
        "reference:325:302",
        "reference:325:340",
        "reference:325:346",
        "reference:325:348",
        "reference:325:352",
        "reference:325:370",
        "reference:325:373",
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:363:379",
        "reference:363:397",
        "reference:365:398",
        "reference:367:452",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:392:398",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 326,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 326,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 326,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 326,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 326,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 326,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 327,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        168,
        184,
        200,
        233
      ],
      "contributing_edge_ids": [
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 327,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        189,
        194,
        200,
        202,
        233
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 36,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 327,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        184,
        186,
        189,
        191,
        193,
        194,
        200,
        202,
        233
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:21:34",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:161:163",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:166:202",
        "reference:168:202",
        "reference:184:202",
        "reference:189:202",
        "reference:191:202",
        "reference:193:202",
        "reference:194:202",
        "reference:200:202",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 327,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        330,
        331,
        340
      ],
      "contributing_edge_ids": [
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 327,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        330,
        331,
        340
      ],
      "contributing_edge_ids": [
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 327,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        330,
        331,
        340
      ],
      "contributing_edge_ids": [
        "reference:327:330",
        "reference:327:331",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 328,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 328,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 328,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 328,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        365
      ],
      "contributing_edge_ids": [
        "reference:328:365"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 328,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        365,
        398
      ],
      "contributing_edge_ids": [
        "reference:328:365",
        "reference:365:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 328,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        365,
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:328:365",
        "reference:365:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 329,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:329"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 329,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:329"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 329,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:329"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 329,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 329,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 329,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 330,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        327
      ],
      "contributing_edge_ids": [
        "reference:327:330"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 330,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        168,
        184,
        200,
        233,
        327
      ],
      "contributing_edge_ids": [
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327",
        "reference:327:330"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 330,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        189,
        194,
        200,
        202,
        233,
        327
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327",
        "reference:327:330"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 330,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 330,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 330,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 331,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        327
      ],
      "contributing_edge_ids": [
        "reference:327:331"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 331,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        168,
        184,
        200,
        233,
        327
      ],
      "contributing_edge_ids": [
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327",
        "reference:327:331"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 331,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        20,
        23,
        24,
        32,
        34,
        36,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        189,
        194,
        200,
        202,
        233,
        327
      ],
      "contributing_edge_ids": [
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327",
        "reference:327:331"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 331,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 331,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 331,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 332,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 332,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 332,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 332,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 332,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 332,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 333,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 333,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 333,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 333,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 333,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 333,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 334,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 334,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 334,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 334,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 334,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 334,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 335,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 335,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 335,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 335,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 335,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 335,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 336,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 336,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 336,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 336,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 336,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 336,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 337,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 337,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 337,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 337,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 337,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 337,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 338,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 338,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 338,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 338,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 338,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 338,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 339,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 339,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 339,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 339,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 339,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 339,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 340,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        325,
        327
      ],
      "contributing_edge_ids": [
        "reference:325:340",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 340,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        144,
        168,
        184,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        233,
        234,
        325,
        327
      ],
      "contributing_edge_ids": [
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327",
        "reference:325:340",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 340,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 68,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        233,
        234,
        237,
        240,
        325,
        327
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:168:327",
        "reference:184:327",
        "reference:200:327",
        "reference:233:327",
        "reference:325:340",
        "reference:327:340"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 340,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 340,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 340,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 341,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 341,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 341,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 341,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 341,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 341,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 342,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 342,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 342,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 342,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 342,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 342,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 343,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 343,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 343,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 343,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 343,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 343,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 344,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 344,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 344,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 344,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 344,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 344,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 345,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 345,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 345,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 345,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 345,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 345,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 346,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        194,
        200,
        310,
        325
      ],
      "contributing_edge_ids": [
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 346,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        186,
        189,
        191,
        193,
        194,
        200,
        207,
        210,
        211,
        216,
        230,
        233,
        234,
        249,
        256,
        309,
        310,
        325
      ],
      "contributing_edge_ids": [
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 346,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 80,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        233,
        234,
        237,
        240,
        244,
        249,
        256,
        304,
        309,
        310,
        325
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:168:233",
        "reference:194:233",
        "reference:200:233",
        "reference:202:233",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:193:256",
        "reference:304:309",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 346,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        348,
        352,
        367,
        373
      ],
      "contributing_edge_ids": [
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 346,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        392,
        452
      ],
      "contributing_edge_ids": [
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:367:452",
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 346,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        348,
        352,
        363,
        365,
        367,
        370,
        373,
        375,
        376,
        379,
        388,
        392,
        396,
        397,
        398,
        425,
        433,
        452
      ],
      "contributing_edge_ids": [
        "reference:346:348",
        "reference:346:352",
        "reference:346:367",
        "reference:346:373",
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:363:379",
        "reference:363:397",
        "reference:365:398",
        "reference:367:452",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:392:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 347,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 347,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 347,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 347,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 347,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 347,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 348,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        194,
        256,
        315,
        318,
        325,
        346
      ],
      "contributing_edge_ids": [
        "reference:194:348",
        "reference:256:348",
        "reference:315:348",
        "reference:318:348",
        "reference:325:348",
        "reference:346:348"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 348,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        144,
        168,
        184,
        186,
        189,
        191,
        193,
        194,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        256,
        310,
        315,
        318,
        325,
        346
      ],
      "contributing_edge_ids": [
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:193:256",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:194:348",
        "reference:256:348",
        "reference:315:348",
        "reference:318:348",
        "reference:325:348",
        "reference:346:348"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 348,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 77,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        34,
        36,
        62,
        97,
        104,
        115,
        117,
        124,
        128,
        130,
        131,
        141,
        144,
        149,
        153,
        154,
        158,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        233,
        234,
        237,
        240,
        249,
        256,
        309,
        310,
        315,
        318,
        325,
        346
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:10:184",
        "reference:18:184",
        "reference:20:184",
        "reference:23:184",
        "reference:24:184",
        "reference:32:184",
        "reference:34:184",
        "reference:36:184",
        "reference:97:184",
        "reference:104:184",
        "reference:115:184",
        "reference:117:184",
        "reference:124:184",
        "reference:128:184",
        "reference:130:184",
        "reference:144:184",
        "reference:149:184",
        "reference:153:184",
        "reference:158:184",
        "reference:162:184",
        "reference:163:184",
        "reference:166:184",
        "reference:168:184",
        "reference:141:186",
        "reference:144:186",
        "reference:166:186",
        "reference:168:186",
        "reference:175:186",
        "reference:181:186",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:191",
        "reference:182:191",
        "reference:184:191",
        "reference:185:191",
        "reference:186:191",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:256",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:194:348",
        "reference:256:348",
        "reference:315:348",
        "reference:318:348",
        "reference:325:348",
        "reference:346:348"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 25,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 348,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 348,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 348,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 349,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        288,
        318
      ],
      "contributing_edge_ids": [
        "reference:288:349",
        "reference:318:349"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 349,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        288,
        318
      ],
      "contributing_edge_ids": [
        "reference:288:349",
        "reference:318:349"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 349,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        288,
        318
      ],
      "contributing_edge_ids": [
        "reference:288:349",
        "reference:318:349"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 349,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 349,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 349,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 350,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 350,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 350,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 350,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        365
      ],
      "contributing_edge_ids": [
        "reference:350:365"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 350,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        365,
        398
      ],
      "contributing_edge_ids": [
        "reference:350:365",
        "reference:365:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 350,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        365,
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:350:365",
        "reference:365:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 351,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 351,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 351,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 351,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 351,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 351,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 352,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        266,
        315,
        325,
        346
      ],
      "contributing_edge_ids": [
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 352,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        144,
        168,
        193,
        194,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        310,
        315,
        325,
        346
      ],
      "contributing_edge_ids": [
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 352,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 69,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        233,
        234,
        237,
        240,
        249,
        256,
        259,
        266,
        309,
        310,
        315,
        325,
        346
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:249:259",
        "reference:259:266",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 352,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        363,
        365,
        370,
        373,
        375,
        392
      ],
      "contributing_edge_ids": [
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 352,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        363,
        365,
        370,
        373,
        375,
        376,
        379,
        388,
        392,
        396,
        397,
        398,
        425,
        433
      ],
      "contributing_edge_ids": [
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:363:379",
        "reference:363:397",
        "reference:365:398",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:392:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 352,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        275,
        363,
        365,
        370,
        373,
        375,
        376,
        379,
        388,
        392,
        396,
        397,
        398,
        425,
        426,
        433,
        437,
        451,
        454,
        456,
        499,
        523,
        531,
        535,
        569
      ],
      "contributing_edge_ids": [
        "reference:352:363",
        "reference:352:365",
        "reference:352:370",
        "reference:352:373",
        "reference:352:375",
        "reference:352:392",
        "reference:363:379",
        "reference:363:397",
        "reference:365:398",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:373:375",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:392:398",
        "reference:398:396",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 353,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 353,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 353,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 353,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 353,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 353,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 354,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:354"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 354,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:354"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 354,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:354"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 354,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 354,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 354,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 355,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 355,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 355,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 355,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 355,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 355,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 356,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 356,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 356,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 356,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 356,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 356,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 357,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 357,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 357,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 357,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 357,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 357,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 358,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 358,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 358,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 358,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        452
      ],
      "contributing_edge_ids": [
        "reference:358:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 358,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        452
      ],
      "contributing_edge_ids": [
        "reference:358:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 358,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        452
      ],
      "contributing_edge_ids": [
        "reference:358:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 359,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:359"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 359,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:359"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 359,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:359"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 359,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 359,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 359,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 360,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 360,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 360,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 360,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 360,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 360,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 361,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:361"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 361,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:361"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 361,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:361"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 361,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        550,
        585
      ],
      "contributing_edge_ids": [
        "reference:361:550",
        "reference:361:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 361,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        550,
        556,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        585,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        605
      ],
      "contributing_edge_ids": [
        "reference:361:550",
        "reference:361:585",
        "reference:550:556",
        "reference:550:568",
        "reference:550:569",
        "reference:550:574",
        "reference:550:576",
        "reference:550:578",
        "reference:550:582",
        "reference:550:584",
        "reference:550:588",
        "reference:550:591",
        "reference:550:592",
        "reference:550:596",
        "reference:550:600",
        "reference:550:601",
        "reference:550:603",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 16,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 361,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        550,
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:361:550",
        "reference:361:585",
        "reference:550:556",
        "reference:550:568",
        "reference:550:569",
        "reference:550:574",
        "reference:550:576",
        "reference:550:578",
        "reference:550:582",
        "reference:550:584",
        "reference:550:588",
        "reference:550:591",
        "reference:550:592",
        "reference:550:596",
        "reference:550:600",
        "reference:550:601",
        "reference:550:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 362,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 362,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 362,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 362,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 362,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 362,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 363,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        352
      ],
      "contributing_edge_ids": [
        "reference:352:363"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 363,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        266,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:352:363"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 363,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        144,
        168,
        193,
        194,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        310,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:352:363"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 363,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        379,
        397
      ],
      "contributing_edge_ids": [
        "reference:363:379",
        "reference:363:397"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 363,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        379,
        397
      ],
      "contributing_edge_ids": [
        "reference:363:379",
        "reference:363:397"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 363,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        379,
        397
      ],
      "contributing_edge_ids": [
        "reference:363:379",
        "reference:363:397"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 364,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 364,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 364,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 364,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        366,
        367,
        368,
        369
      ],
      "contributing_edge_ids": [
        "reference:364:366",
        "reference:364:367",
        "reference:364:368",
        "reference:364:369"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 364,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        366,
        367,
        368,
        369,
        372,
        452,
        477
      ],
      "contributing_edge_ids": [
        "reference:364:366",
        "reference:364:367",
        "reference:364:368",
        "reference:364:369",
        "reference:366:368",
        "reference:366:369",
        "reference:367:452",
        "reference:368:477",
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 364,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        366,
        367,
        368,
        369,
        372,
        452,
        473,
        477
      ],
      "contributing_edge_ids": [
        "reference:364:366",
        "reference:364:367",
        "reference:364:368",
        "reference:364:369",
        "reference:366:368",
        "reference:366:369",
        "reference:367:452",
        "reference:368:477",
        "reference:369:372",
        "reference:477:473"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 365,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        328,
        350,
        352
      ],
      "contributing_edge_ids": [
        "reference:328:365",
        "reference:350:365",
        "reference:352:365"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 365,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        266,
        315,
        325,
        328,
        346,
        350,
        352
      ],
      "contributing_edge_ids": [
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:328:365",
        "reference:350:365",
        "reference:352:365"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 365,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        144,
        168,
        193,
        194,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        310,
        315,
        325,
        328,
        346,
        350,
        352
      ],
      "contributing_edge_ids": [
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:328:365",
        "reference:350:365",
        "reference:352:365"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 365,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        398
      ],
      "contributing_edge_ids": [
        "reference:365:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 365,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:365:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 365,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:365:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 366,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        318,
        364
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 366,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        318,
        364
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 366,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        318,
        364
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 366,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        368,
        369
      ],
      "contributing_edge_ids": [
        "reference:366:368",
        "reference:366:369"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 366,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        368,
        369,
        372,
        477
      ],
      "contributing_edge_ids": [
        "reference:366:368",
        "reference:366:369",
        "reference:368:477",
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 366,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        368,
        369,
        372,
        473,
        477
      ],
      "contributing_edge_ids": [
        "reference:366:368",
        "reference:366:369",
        "reference:368:477",
        "reference:369:372",
        "reference:477:473"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 367,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        346,
        364
      ],
      "contributing_edge_ids": [
        "reference:346:367",
        "reference:364:367"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 367,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        194,
        200,
        310,
        325,
        346,
        364
      ],
      "contributing_edge_ids": [
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:346:367",
        "reference:364:367"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 367,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        186,
        189,
        191,
        193,
        194,
        200,
        207,
        210,
        211,
        216,
        230,
        233,
        234,
        249,
        256,
        309,
        310,
        325,
        346,
        364
      ],
      "contributing_edge_ids": [
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:346:367",
        "reference:364:367"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 367,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        452
      ],
      "contributing_edge_ids": [
        "reference:367:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 367,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        452
      ],
      "contributing_edge_ids": [
        "reference:367:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 367,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        452
      ],
      "contributing_edge_ids": [
        "reference:367:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 368,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        318,
        364,
        366
      ],
      "contributing_edge_ids": [
        "reference:318:368",
        "reference:364:368",
        "reference:366:368"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 368,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        318,
        364,
        366
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366",
        "reference:318:368",
        "reference:364:368",
        "reference:366:368"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 368,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        318,
        364,
        366
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366",
        "reference:318:368",
        "reference:364:368",
        "reference:366:368"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 368,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        477
      ],
      "contributing_edge_ids": [
        "reference:368:477"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 368,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        473,
        477
      ],
      "contributing_edge_ids": [
        "reference:368:477",
        "reference:477:473"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 368,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:368:477",
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 369,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        318,
        364,
        366
      ],
      "contributing_edge_ids": [
        "reference:318:369",
        "reference:364:369",
        "reference:366:369"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 369,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        318,
        364,
        366
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366",
        "reference:318:369",
        "reference:364:369",
        "reference:366:369"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 369,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        318,
        364,
        366
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366",
        "reference:318:369",
        "reference:364:369",
        "reference:366:369"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 369,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        372
      ],
      "contributing_edge_ids": [
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 369,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        372
      ],
      "contributing_edge_ids": [
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 369,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        372
      ],
      "contributing_edge_ids": [
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 370,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        234,
        266,
        315,
        325,
        352
      ],
      "contributing_edge_ids": [
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 370,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 370,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 67,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        249,
        259,
        266,
        310,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:249:259",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 370,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        376,
        379,
        388,
        396,
        425,
        433
      ],
      "contributing_edge_ids": [
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 370,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        275,
        376,
        379,
        388,
        396,
        398,
        425,
        426,
        433,
        437,
        451,
        454,
        456,
        499,
        523,
        531,
        535,
        569
      ],
      "contributing_edge_ids": [
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 370,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 72,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        376,
        379,
        388,
        396,
        398,
        425,
        426,
        433,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        587,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:370:376",
        "reference:370:379",
        "reference:370:388",
        "reference:370:396",
        "reference:370:425",
        "reference:370:433",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:398:396",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 371,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 371,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 371,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 371,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 371,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 371,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 372,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        279,
        369
      ],
      "contributing_edge_ids": [
        "reference:279:372",
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 372,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        244,
        276,
        279,
        318,
        364,
        366,
        369
      ],
      "contributing_edge_ids": [
        "reference:244:279",
        "reference:276:279",
        "reference:318:369",
        "reference:364:369",
        "reference:366:369",
        "reference:279:372",
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 372,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        144,
        168,
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        276,
        279,
        318,
        364,
        366,
        369
      ],
      "contributing_edge_ids": [
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:318:366",
        "reference:364:366",
        "reference:318:369",
        "reference:364:369",
        "reference:366:369",
        "reference:279:372",
        "reference:369:372"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 372,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 372,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 372,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 373,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        234,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:234:373",
        "reference:315:373",
        "reference:325:373",
        "reference:346:373",
        "reference:352:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 373,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        144,
        168,
        193,
        194,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        266,
        310,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:373",
        "reference:315:373",
        "reference:325:373",
        "reference:346:373",
        "reference:352:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 30,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 373,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 70,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        194,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        233,
        234,
        237,
        240,
        249,
        256,
        259,
        266,
        309,
        310,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:168:194",
        "reference:184:194",
        "reference:186:194",
        "reference:189:194",
        "reference:191:194",
        "reference:193:194",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:233:310",
        "reference:249:310",
        "reference:256:310",
        "reference:309:310",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:373",
        "reference:315:373",
        "reference:325:373",
        "reference:346:373",
        "reference:352:373"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 23,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 373,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        375
      ],
      "contributing_edge_ids": [
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 373,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        375
      ],
      "contributing_edge_ids": [
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 373,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        375
      ],
      "contributing_edge_ids": [
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 374,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 374,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 374,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 374,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 374,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 374,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 375,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        234,
        352,
        373
      ],
      "contributing_edge_ids": [
        "reference:234:375",
        "reference:352:375",
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 375,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        193,
        209,
        210,
        234,
        266,
        315,
        325,
        346,
        352,
        373
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:373",
        "reference:315:373",
        "reference:325:373",
        "reference:346:373",
        "reference:352:373",
        "reference:234:375",
        "reference:352:375",
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 375,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        144,
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        194,
        197,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        232,
        234,
        237,
        240,
        259,
        266,
        310,
        315,
        325,
        346,
        352,
        373
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:373",
        "reference:315:373",
        "reference:325:373",
        "reference:346:373",
        "reference:352:373",
        "reference:234:375",
        "reference:352:375",
        "reference:373:375"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 375,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 375,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 375,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 376,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        370,
        386,
        388,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 376,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        377,
        386,
        388,
        389,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:370:388",
        "reference:376:388",
        "reference:377:388",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 376,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        325,
        346,
        352,
        370,
        377,
        386,
        388,
        389,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:370:388",
        "reference:376:388",
        "reference:377:388",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 376,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        388,
        398,
        426
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 376,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        388,
        396,
        398,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:398:396",
        "reference:426:376",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 376,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        275,
        388,
        396,
        398,
        426,
        433,
        437,
        451,
        454,
        456,
        499,
        523,
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:398:396",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 377,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 377,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 377,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 377,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        381,
        388,
        396,
        397,
        398,
        430
      ],
      "contributing_edge_ids": [
        "reference:377:381",
        "reference:377:388",
        "reference:377:396",
        "reference:377:397",
        "reference:377:398",
        "reference:377:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 377,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        376,
        381,
        388,
        396,
        397,
        398,
        430
      ],
      "contributing_edge_ids": [
        "reference:377:381",
        "reference:377:388",
        "reference:377:396",
        "reference:377:397",
        "reference:377:398",
        "reference:377:430",
        "reference:381:398",
        "reference:388:376",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 377,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        376,
        381,
        388,
        396,
        397,
        398,
        426,
        430
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:377:381",
        "reference:377:388",
        "reference:377:396",
        "reference:377:397",
        "reference:377:398",
        "reference:377:430",
        "reference:381:398",
        "reference:388:376",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 378,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:378"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 378,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:378"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 378,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:378"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 378,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        398
      ],
      "contributing_edge_ids": [
        "reference:378:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 378,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:378:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 378,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:378:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 379,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        363,
        370
      ],
      "contributing_edge_ids": [
        "reference:363:379",
        "reference:370:379"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 379,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        234,
        266,
        315,
        325,
        352,
        363,
        370
      ],
      "contributing_edge_ids": [
        "reference:352:363",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:363:379",
        "reference:370:379"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 379,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        325,
        346,
        352,
        363,
        370
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:352:363",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:363:379",
        "reference:370:379"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 379,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 379,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 379,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 380,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 380,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 380,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 380,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 380,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 380,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 381,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        234,
        377
      ],
      "contributing_edge_ids": [
        "reference:234:381",
        "reference:377:381"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 381,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        193,
        209,
        210,
        234,
        377
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:234:381",
        "reference:377:381"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 381,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        377
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:234:381",
        "reference:377:381"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 381,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        398
      ],
      "contributing_edge_ids": [
        "reference:381:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 381,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:381:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 381,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:381:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 382,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        234,
        249,
        266,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:234:382",
        "reference:249:382",
        "reference:266:382",
        "reference:315:382",
        "reference:318:382"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 382,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        144,
        168,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        237,
        244,
        249,
        259,
        266,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:234:382",
        "reference:249:382",
        "reference:266:382",
        "reference:315:382",
        "reference:318:382"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 22,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 382,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        244,
        249,
        259,
        266,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:237",
        "reference:200:237",
        "reference:210:237",
        "reference:234:237",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:193:249",
        "reference:197:249",
        "reference:200:249",
        "reference:207:249",
        "reference:210:249",
        "reference:234:249",
        "reference:237:249",
        "reference:244:249",
        "reference:249:259",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:234:382",
        "reference:249:382",
        "reference:266:382",
        "reference:315:382",
        "reference:318:382"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 382,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 382,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 382,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 383,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 383,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 383,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 383,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 383,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 383,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 384,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:315:384",
        "reference:318:384"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 384,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:384",
        "reference:318:384"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 384,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:384",
        "reference:318:384"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 384,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        275,
        398
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:384:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 384,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        396,
        398,
        556,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:384:275",
        "reference:384:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 384,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        396,
        398,
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:384:275",
        "reference:384:398",
        "reference:398:396",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 385,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        234
      ],
      "contributing_edge_ids": [
        "reference:234:385"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 385,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        193,
        209,
        210,
        234
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:234:385"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 385,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:234:385"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 385,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 385,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 385,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 386,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 386,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 386,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 386,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        376,
        396,
        433,
        445,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:386:376",
        "reference:386:396",
        "reference:386:433",
        "reference:386:445",
        "reference:386:548",
        "reference:386:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 386,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        275,
        376,
        388,
        396,
        398,
        426,
        433,
        437,
        445,
        447,
        451,
        454,
        456,
        464,
        469,
        499,
        523,
        531,
        535,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:386:376",
        "reference:386:396",
        "reference:386:433",
        "reference:386:445",
        "reference:386:548",
        "reference:386:552",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 37,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 386,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 85,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        376,
        388,
        396,
        398,
        426,
        433,
        437,
        445,
        447,
        451,
        453,
        454,
        456,
        460,
        462,
        464,
        469,
        498,
        499,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        567,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:386:376",
        "reference:386:396",
        "reference:386:433",
        "reference:386:445",
        "reference:386:548",
        "reference:386:552",
        "reference:388:376",
        "reference:398:396",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 387,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        144,
        389
      ],
      "contributing_edge_ids": [
        "reference:144:387",
        "reference:389:387"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 387,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        389
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:387",
        "reference:389:387"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 26,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 387,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        389
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:387",
        "reference:389:387"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 387,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        398
      ],
      "contributing_edge_ids": [
        "reference:387:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 387,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:387:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 387,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:387:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 388,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        370,
        376,
        377
      ],
      "contributing_edge_ids": [
        "reference:370:388",
        "reference:376:388",
        "reference:377:388"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 388,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        377,
        386,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:370:388",
        "reference:376:388",
        "reference:377:388"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 11,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 388,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        325,
        346,
        352,
        370,
        376,
        377,
        386,
        389,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:370:388",
        "reference:376:388",
        "reference:377:388",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 388,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        376
      ],
      "contributing_edge_ids": [
        "reference:388:376"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 388,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        376,
        398,
        426
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 388,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        376,
        396,
        398,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:398:396",
        "reference:426:376",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 389,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 389,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 389,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 389,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        387,
        426
      ],
      "contributing_edge_ids": [
        "reference:389:387",
        "reference:389:426"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 389,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        376,
        387,
        398,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:387:398",
        "reference:389:387",
        "reference:389:426",
        "reference:426:376",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 389,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        275,
        376,
        387,
        388,
        396,
        398,
        426,
        433,
        437,
        451,
        454,
        456,
        499,
        523,
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:387:398",
        "reference:389:387",
        "reference:389:426",
        "reference:398:396",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 390,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 390,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 390,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 390,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        397,
        398,
        430
      ],
      "contributing_edge_ids": [
        "reference:390:397",
        "reference:390:398",
        "reference:390:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 390,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        396,
        397,
        398,
        430
      ],
      "contributing_edge_ids": [
        "reference:390:397",
        "reference:390:398",
        "reference:390:430",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 390,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        396,
        397,
        398,
        430
      ],
      "contributing_edge_ids": [
        "reference:390:397",
        "reference:390:398",
        "reference:390:430",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 391,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 391,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 391,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 391,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 391,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 391,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 392,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        352
      ],
      "contributing_edge_ids": [
        "reference:352:392"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 392,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        266,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:352:392"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 392,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        144,
        168,
        193,
        194,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        310,
        315,
        325,
        346,
        352
      ],
      "contributing_edge_ids": [
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:352:392"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 392,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        398
      ],
      "contributing_edge_ids": [
        "reference:392:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 392,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:392:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 392,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        396,
        398
      ],
      "contributing_edge_ids": [
        "reference:392:398",
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 393,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        276,
        279
      ],
      "contributing_edge_ids": [
        "reference:276:393",
        "reference:279:393"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 393,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        210,
        234,
        244,
        276,
        279
      ],
      "contributing_edge_ids": [
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:276:393",
        "reference:279:393"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 393,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240,
        244,
        276,
        279
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:276:393",
        "reference:279:393"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 393,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 393,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 393,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 394,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:315:394",
        "reference:318:394"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 394,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:394",
        "reference:318:394"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 394,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:394",
        "reference:318:394"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 394,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        395
      ],
      "contributing_edge_ids": [
        "reference:394:395"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 394,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        395
      ],
      "contributing_edge_ids": [
        "reference:394:395"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 394,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        395
      ],
      "contributing_edge_ids": [
        "reference:394:395"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 395,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        394
      ],
      "contributing_edge_ids": [
        "reference:394:395"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 395,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        315,
        318,
        394
      ],
      "contributing_edge_ids": [
        "reference:315:394",
        "reference:318:394",
        "reference:394:395"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 395,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318,
        394
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:394",
        "reference:318:394",
        "reference:394:395"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 395,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 395,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 395,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 396,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        370,
        377,
        386,
        398,
        401
      ],
      "contributing_edge_ids": [
        "reference:370:396",
        "reference:377:396",
        "reference:386:396",
        "reference:398:396",
        "reference:401:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 396,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        23,
        144,
        185,
        234,
        266,
        315,
        325,
        352,
        365,
        370,
        376,
        377,
        378,
        381,
        384,
        386,
        387,
        390,
        392,
        398,
        401
      ],
      "contributing_edge_ids": [
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:396",
        "reference:377:396",
        "reference:386:396",
        "reference:398:396",
        "reference:401:396",
        "reference:23:398",
        "reference:144:398",
        "reference:185:398",
        "reference:315:398",
        "reference:365:398",
        "reference:376:398",
        "reference:377:398",
        "reference:378:398",
        "reference:381:398",
        "reference:384:398",
        "reference:387:398",
        "reference:390:398",
        "reference:392:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 396,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 72,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        166,
        168,
        181,
        182,
        183,
        185,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        318,
        325,
        328,
        346,
        350,
        352,
        365,
        370,
        376,
        377,
        378,
        381,
        384,
        386,
        387,
        388,
        389,
        390,
        392,
        398,
        401,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:328:365",
        "reference:350:365",
        "reference:352:365",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:318:378",
        "reference:234:381",
        "reference:377:381",
        "reference:315:384",
        "reference:318:384",
        "reference:144:387",
        "reference:389:387",
        "reference:352:392",
        "reference:370:396",
        "reference:377:396",
        "reference:386:396",
        "reference:398:396",
        "reference:401:396",
        "reference:23:398",
        "reference:144:398",
        "reference:185:398",
        "reference:315:398",
        "reference:365:398",
        "reference:376:398",
        "reference:377:398",
        "reference:378:398",
        "reference:381:398",
        "reference:384:398",
        "reference:387:398",
        "reference:390:398",
        "reference:392:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 24,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 396,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 396,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 396,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 397,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        363,
        377,
        390
      ],
      "contributing_edge_ids": [
        "reference:363:397",
        "reference:377:397",
        "reference:390:397"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 397,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        352,
        363,
        377,
        390
      ],
      "contributing_edge_ids": [
        "reference:352:363",
        "reference:363:397",
        "reference:377:397",
        "reference:390:397"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 397,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        266,
        315,
        325,
        346,
        352,
        363,
        377,
        390
      ],
      "contributing_edge_ids": [
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:352:363",
        "reference:363:397",
        "reference:377:397",
        "reference:390:397"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 397,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 397,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 397,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 398,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        23,
        144,
        185,
        315,
        365,
        376,
        377,
        378,
        381,
        384,
        387,
        390,
        392
      ],
      "contributing_edge_ids": [
        "reference:23:398",
        "reference:144:398",
        "reference:185:398",
        "reference:315:398",
        "reference:365:398",
        "reference:376:398",
        "reference:377:398",
        "reference:378:398",
        "reference:381:398",
        "reference:384:398",
        "reference:387:398",
        "reference:390:398",
        "reference:392:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 398,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        166,
        168,
        181,
        182,
        183,
        185,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318,
        328,
        350,
        352,
        365,
        370,
        376,
        377,
        378,
        381,
        384,
        386,
        387,
        388,
        389,
        390,
        392,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:328:365",
        "reference:350:365",
        "reference:352:365",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:318:378",
        "reference:234:381",
        "reference:377:381",
        "reference:315:384",
        "reference:318:384",
        "reference:144:387",
        "reference:389:387",
        "reference:352:392",
        "reference:23:398",
        "reference:144:398",
        "reference:185:398",
        "reference:315:398",
        "reference:365:398",
        "reference:376:398",
        "reference:377:398",
        "reference:378:398",
        "reference:381:398",
        "reference:384:398",
        "reference:387:398",
        "reference:390:398",
        "reference:392:398"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 22,
      "round_2_sum_neighbor_degree": 67,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 398,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 93,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        163,
        166,
        168,
        175,
        181,
        182,
        183,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        266,
        315,
        318,
        325,
        328,
        346,
        350,
        352,
        365,
        370,
        376,
        377,
        378,
        381,
        384,
        386,
        387,
        388,
        389,
        390,
        392,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:163:166",
        "reference:117:168",
        "reference:144:181",
        "reference:154:181",
        "reference:162:181",
        "reference:166:181",
        "reference:168:181",
        "reference:175:181",
        "reference:131:182",
        "reference:144:182",
        "reference:154:182",
        "reference:162:182",
        "reference:166:182",
        "reference:168:182",
        "reference:175:182",
        "reference:144:185",
        "reference:166:185",
        "reference:168:185",
        "reference:181:185",
        "reference:182:185",
        "reference:183:185",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:328:365",
        "reference:350:365",
        "reference:352:365",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:318:378",
        "reference:234:381",
        "reference:377:381",
        "reference:315:384",
        "reference:318:384",
        "reference:144:387",
        "reference:389:387",
        "reference:370:388",
        "reference:376:388",
        "reference:377:388",
        "reference:352:392",
        "reference:23:398",
        "reference:144:398",
        "reference:185:398",
        "reference:315:398",
        "reference:365:398",
        "reference:376:398",
        "reference:377:398",
        "reference:378:398",
        "reference:381:398",
        "reference:384:398",
        "reference:387:398",
        "reference:390:398",
        "reference:392:398",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 27,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 398,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        396
      ],
      "contributing_edge_ids": [
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 398,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        396
      ],
      "contributing_edge_ids": [
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 398,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        396
      ],
      "contributing_edge_ids": [
        "reference:398:396"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 399,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:315:399",
        "reference:318:399"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 399,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:399",
        "reference:318:399"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 399,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:399",
        "reference:318:399"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 399,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 399,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 399,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 400,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 400,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 400,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 400,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 400,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 400,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 401,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 401,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 401,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 401,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        396,
        403,
        430
      ],
      "contributing_edge_ids": [
        "reference:401:396",
        "reference:401:403",
        "reference:401:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 401,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        396,
        403,
        405,
        430
      ],
      "contributing_edge_ids": [
        "reference:401:396",
        "reference:401:403",
        "reference:401:430",
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 401,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        396,
        403,
        405,
        430
      ],
      "contributing_edge_ids": [
        "reference:401:396",
        "reference:401:403",
        "reference:401:430",
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 402,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:315:402",
        "reference:318:402"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 402,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:402",
        "reference:318:402"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 402,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        315,
        318
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:402",
        "reference:318:402"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 402,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        405,
        406
      ],
      "contributing_edge_ids": [
        "reference:402:405",
        "reference:402:406"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 402,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        405,
        406,
        430
      ],
      "contributing_edge_ids": [
        "reference:402:405",
        "reference:402:406",
        "reference:406:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 402,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        405,
        406,
        430
      ],
      "contributing_edge_ids": [
        "reference:402:405",
        "reference:402:406",
        "reference:406:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 403,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        401
      ],
      "contributing_edge_ids": [
        "reference:401:403"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 403,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        401
      ],
      "contributing_edge_ids": [
        "reference:401:403"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 403,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        401
      ],
      "contributing_edge_ids": [
        "reference:401:403"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 403,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        405
      ],
      "contributing_edge_ids": [
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 403,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        405
      ],
      "contributing_edge_ids": [
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 403,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        405
      ],
      "contributing_edge_ids": [
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 404,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 404,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 404,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 404,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        406
      ],
      "contributing_edge_ids": [
        "reference:404:406"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 404,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        406,
        430
      ],
      "contributing_edge_ids": [
        "reference:404:406",
        "reference:406:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 404,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        406,
        430
      ],
      "contributing_edge_ids": [
        "reference:404:406",
        "reference:406:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 405,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        402,
        403
      ],
      "contributing_edge_ids": [
        "reference:402:405",
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 405,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        315,
        318,
        401,
        402,
        403
      ],
      "contributing_edge_ids": [
        "reference:315:402",
        "reference:318:402",
        "reference:401:403",
        "reference:402:405",
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 405,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318,
        401,
        402,
        403
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:402",
        "reference:318:402",
        "reference:401:403",
        "reference:402:405",
        "reference:403:405"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 405,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 405,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 405,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 406,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        402,
        404
      ],
      "contributing_edge_ids": [
        "reference:402:406",
        "reference:404:406"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 406,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        315,
        318,
        402,
        404
      ],
      "contributing_edge_ids": [
        "reference:315:402",
        "reference:318:402",
        "reference:402:406",
        "reference:404:406"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 406,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        210,
        211,
        216,
        230,
        234,
        315,
        318,
        402,
        404
      ],
      "contributing_edge_ids": [
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:315:402",
        "reference:318:402",
        "reference:402:406",
        "reference:404:406"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 406,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        430
      ],
      "contributing_edge_ids": [
        "reference:406:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 406,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        430
      ],
      "contributing_edge_ids": [
        "reference:406:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 406,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        430
      ],
      "contributing_edge_ids": [
        "reference:406:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 407,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:407"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 407,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:407"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 407,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        318
      ],
      "contributing_edge_ids": [
        "reference:318:407"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 407,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 407,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 407,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 408,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 408,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 408,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 408,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 408,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 408,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 409,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 409,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 409,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 409,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        413
      ],
      "contributing_edge_ids": [
        "reference:409:413"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 409,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        413,
        430
      ],
      "contributing_edge_ids": [
        "reference:409:413",
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 409,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        413,
        430
      ],
      "contributing_edge_ids": [
        "reference:409:413",
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 410,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 410,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 410,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 410,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 410,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 410,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 411,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 411,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 411,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 411,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 411,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 411,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 412,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 412,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 412,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 412,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 412,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 412,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 413,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        409
      ],
      "contributing_edge_ids": [
        "reference:409:413"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 413,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        409
      ],
      "contributing_edge_ids": [
        "reference:409:413"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 413,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        409
      ],
      "contributing_edge_ids": [
        "reference:409:413"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 413,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        430
      ],
      "contributing_edge_ids": [
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 413,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        430
      ],
      "contributing_edge_ids": [
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 413,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        430
      ],
      "contributing_edge_ids": [
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 414,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 414,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 414,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 414,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 414,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 414,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 415,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 415,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 415,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 415,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 415,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 415,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 416,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 416,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 416,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 416,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 416,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 416,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 417,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        266,
        318
      ],
      "contributing_edge_ids": [
        "reference:266:417",
        "reference:318:417"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 417,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        259,
        266,
        318
      ],
      "contributing_edge_ids": [
        "reference:259:266",
        "reference:266:417",
        "reference:318:417"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 417,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        249,
        259,
        266,
        318
      ],
      "contributing_edge_ids": [
        "reference:249:259",
        "reference:259:266",
        "reference:266:417",
        "reference:318:417"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 417,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        467
      ],
      "contributing_edge_ids": [
        "reference:417:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 417,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        467
      ],
      "contributing_edge_ids": [
        "reference:417:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 417,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        467
      ],
      "contributing_edge_ids": [
        "reference:417:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 418,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 418,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 418,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 418,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 418,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 418,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 419,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 419,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 419,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 419,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 419,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 419,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 420,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 420,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 420,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 420,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 420,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 420,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 421,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 421,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 421,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 421,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 421,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 421,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 422,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 422,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 422,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 422,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 422,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 422,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 423,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 423,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 423,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 423,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 423,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 423,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 424,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 424,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 424,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 424,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 424,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 424,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 425,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        370
      ],
      "contributing_edge_ids": [
        "reference:370:425"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 425,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        234,
        266,
        315,
        325,
        352,
        370
      ],
      "contributing_edge_ids": [
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 425,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        325,
        346,
        352,
        370
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 425,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        376,
        433,
        569
      ],
      "contributing_edge_ids": [
        "reference:425:376",
        "reference:425:433",
        "reference:425:569"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 425,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        275,
        376,
        388,
        398,
        426,
        433,
        437,
        451,
        454,
        456,
        499,
        523,
        531,
        535,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        584,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 39,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 425,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 83,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        376,
        388,
        396,
        398,
        426,
        433,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:398:396",
        "reference:425:376",
        "reference:425:433",
        "reference:425:569",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 426,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        376,
        389
      ],
      "contributing_edge_ids": [
        "reference:376:426",
        "reference:389:426"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 426,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        370,
        376,
        386,
        388,
        389,
        425,
        433
      ],
      "contributing_edge_ids": [
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:376:426",
        "reference:389:426"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 426,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        377,
        386,
        388,
        389,
        425,
        433
      ],
      "contributing_edge_ids": [
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:370:388",
        "reference:376:388",
        "reference:377:388",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 426,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        376,
        433
      ],
      "contributing_edge_ids": [
        "reference:426:376",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 426,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        275,
        376,
        388,
        398,
        433,
        437,
        451,
        454,
        456,
        499,
        523,
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 426,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        376,
        388,
        396,
        398,
        433,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:398:396",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 427,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 427,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 427,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 427,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 427,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 427,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 428,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 428,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 428,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 428,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 428,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 428,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 429,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 429,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 429,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 429,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 429,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 429,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 430,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        377,
        390,
        401,
        406,
        413
      ],
      "contributing_edge_ids": [
        "reference:377:430",
        "reference:390:430",
        "reference:401:430",
        "reference:406:430",
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 430,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        377,
        390,
        401,
        402,
        404,
        406,
        409,
        413
      ],
      "contributing_edge_ids": [
        "reference:402:406",
        "reference:404:406",
        "reference:409:413",
        "reference:377:430",
        "reference:390:430",
        "reference:401:430",
        "reference:406:430",
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 430,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        315,
        318,
        377,
        390,
        401,
        402,
        404,
        406,
        409,
        413
      ],
      "contributing_edge_ids": [
        "reference:315:402",
        "reference:318:402",
        "reference:402:406",
        "reference:404:406",
        "reference:409:413",
        "reference:377:430",
        "reference:390:430",
        "reference:401:430",
        "reference:406:430",
        "reference:413:430"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 430,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 430,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 430,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 431,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 431,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 431,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 431,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 431,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 431,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 432,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 432,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 432,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 432,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 432,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 432,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 433,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 433,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": 133,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 433,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        325,
        346,
        352,
        370,
        376,
        386,
        388,
        389,
        425,
        426
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:144:325",
        "reference:193:325",
        "reference:200:325",
        "reference:207:325",
        "reference:210:325",
        "reference:211:325",
        "reference:216:325",
        "reference:230:325",
        "reference:234:325",
        "reference:266:352",
        "reference:315:352",
        "reference:325:352",
        "reference:346:352",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:376",
        "reference:386:376",
        "reference:388:376",
        "reference:425:376",
        "reference:426:376",
        "reference:433:376",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 433,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        275,
        376,
        437,
        451,
        454,
        456,
        499,
        523,
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 433,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        376,
        388,
        398,
        426,
        437,
        451,
        453,
        454,
        456,
        460,
        462,
        469,
        498,
        499,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 83,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 433,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 90,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        376,
        388,
        396,
        398,
        426,
        437,
        451,
        453,
        454,
        456,
        458,
        460,
        462,
        465,
        467,
        469,
        498,
        499,
        523,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:376:388",
        "reference:376:398",
        "reference:376:426",
        "reference:388:376",
        "reference:398:396",
        "reference:426:376",
        "reference:426:433",
        "reference:433:275",
        "reference:433:376",
        "reference:433:437",
        "reference:433:451",
        "reference:433:454",
        "reference:433:456",
        "reference:433:499",
        "reference:433:523",
        "reference:433:531",
        "reference:433:535",
        "reference:437:469",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:453:456",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 434,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        443
      ],
      "contributing_edge_ids": [
        "reference:443:434"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 434,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        443
      ],
      "contributing_edge_ids": [
        "reference:443:434"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 434,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        443
      ],
      "contributing_edge_ids": [
        "reference:443:434"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 434,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        447,
        540
      ],
      "contributing_edge_ids": [
        "reference:434:447",
        "reference:434:540"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 434,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        275,
        447,
        453,
        540,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:434:447",
        "reference:434:540",
        "reference:447:275",
        "reference:447:453",
        "reference:540:548",
        "reference:540:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 434,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        447,
        453,
        456,
        540,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:434:447",
        "reference:434:540",
        "reference:447:275",
        "reference:447:453",
        "reference:453:456",
        "reference:540:548",
        "reference:540:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 435,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 435,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 435,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 435,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 435,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 435,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 436,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        234,
        266,
        315
      ],
      "contributing_edge_ids": [
        "reference:234:436",
        "reference:266:436",
        "reference:315:436"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 436,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 436,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 62,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        184,
        185,
        186,
        189,
        191,
        192,
        193,
        197,
        200,
        202,
        204,
        205,
        207,
        209,
        210,
        211,
        216,
        219,
        224,
        227,
        230,
        232,
        234,
        237,
        240,
        249,
        259,
        266,
        315
      ],
      "contributing_edge_ids": [
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:117:168",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:185:207",
        "reference:197:207",
        "reference:200:207",
        "reference:202:207",
        "reference:204:207",
        "reference:205:207",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:185:211",
        "reference:193:211",
        "reference:197:211",
        "reference:200:211",
        "reference:200:216",
        "reference:202:216",
        "reference:210:216",
        "reference:211:216",
        "reference:200:230",
        "reference:210:230",
        "reference:219:230",
        "reference:224:230",
        "reference:227:230",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:249:259",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 436,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        445,
        456
      ],
      "contributing_edge_ids": [
        "reference:436:445",
        "reference:436:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 436,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        445,
        447,
        456,
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 436,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        275,
        445,
        447,
        453,
        456,
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:436:445",
        "reference:436:456",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 437,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        433
      ],
      "contributing_edge_ids": [
        "reference:433:437"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 437,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:437"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 437,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:437"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 437,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        469
      ],
      "contributing_edge_ids": [
        "reference:437:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 437,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        469
      ],
      "contributing_edge_ids": [
        "reference:437:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 437,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        469
      ],
      "contributing_edge_ids": [
        "reference:437:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 438,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 438,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 438,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 438,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        275
      ],
      "contributing_edge_ids": [
        "reference:438:275"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 438,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        556,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:438:275"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 438,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:438:275",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 439,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 439,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 439,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 439,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 439,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 439,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 440,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 440,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 440,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 440,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        441,
        454,
        469
      ],
      "contributing_edge_ids": [
        "reference:440:441",
        "reference:440:454",
        "reference:440:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 440,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        441,
        454,
        456,
        460,
        462,
        469
      ],
      "contributing_edge_ids": [
        "reference:440:441",
        "reference:440:454",
        "reference:440:469",
        "reference:441:469",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 440,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        441,
        454,
        456,
        458,
        460,
        462,
        465,
        467,
        469
      ],
      "contributing_edge_ids": [
        "reference:440:441",
        "reference:440:454",
        "reference:440:469",
        "reference:441:469",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 441,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        440
      ],
      "contributing_edge_ids": [
        "reference:440:441"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 441,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        440
      ],
      "contributing_edge_ids": [
        "reference:440:441"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 441,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        440
      ],
      "contributing_edge_ids": [
        "reference:440:441"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 441,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        469
      ],
      "contributing_edge_ids": [
        "reference:441:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 441,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        469
      ],
      "contributing_edge_ids": [
        "reference:441:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 441,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        469
      ],
      "contributing_edge_ids": [
        "reference:441:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 442,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 442,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 442,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 442,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        275,
        444,
        445,
        447,
        451,
        454,
        456,
        464,
        469,
        490,
        498,
        499,
        540,
        548,
        552,
        569
      ],
      "contributing_edge_ids": [
        "reference:442:275",
        "reference:442:444",
        "reference:442:445",
        "reference:442:447",
        "reference:442:451",
        "reference:442:454",
        "reference:442:456",
        "reference:442:464",
        "reference:442:469",
        "reference:442:490",
        "reference:442:498",
        "reference:442:499",
        "reference:442:540",
        "reference:442:548",
        "reference:442:552",
        "reference:442:569"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 442,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        444,
        445,
        447,
        451,
        453,
        454,
        456,
        460,
        462,
        464,
        469,
        490,
        498,
        499,
        540,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        584,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:442:275",
        "reference:442:444",
        "reference:442:445",
        "reference:442:447",
        "reference:442:451",
        "reference:442:454",
        "reference:442:456",
        "reference:442:464",
        "reference:442:469",
        "reference:442:490",
        "reference:442:498",
        "reference:442:499",
        "reference:442:540",
        "reference:442:548",
        "reference:442:552",
        "reference:442:569",
        "reference:444:445",
        "reference:444:548",
        "reference:444:552",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:490:498",
        "reference:540:548",
        "reference:540:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 84,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 442,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 75,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        444,
        445,
        447,
        451,
        453,
        454,
        456,
        458,
        460,
        462,
        464,
        465,
        467,
        469,
        490,
        498,
        499,
        540,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:442:275",
        "reference:442:444",
        "reference:442:445",
        "reference:442:447",
        "reference:442:451",
        "reference:442:454",
        "reference:442:456",
        "reference:442:464",
        "reference:442:469",
        "reference:442:490",
        "reference:442:498",
        "reference:442:499",
        "reference:442:540",
        "reference:442:548",
        "reference:442:552",
        "reference:442:569",
        "reference:444:445",
        "reference:444:548",
        "reference:444:552",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453",
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:453:456",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:490:498",
        "reference:540:548",
        "reference:540:552",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 443,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 443,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 443,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 443,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        434,
        444,
        445,
        464,
        469,
        498
      ],
      "contributing_edge_ids": [
        "reference:443:434",
        "reference:443:444",
        "reference:443:445",
        "reference:443:464",
        "reference:443:469",
        "reference:443:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 443,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        434,
        444,
        445,
        447,
        464,
        469,
        498,
        540,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:434:447",
        "reference:434:540",
        "reference:443:434",
        "reference:443:444",
        "reference:443:445",
        "reference:443:464",
        "reference:443:469",
        "reference:443:498",
        "reference:444:445",
        "reference:444:548",
        "reference:444:552",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 443,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        275,
        434,
        444,
        445,
        447,
        453,
        464,
        469,
        498,
        540,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:434:447",
        "reference:434:540",
        "reference:443:434",
        "reference:443:444",
        "reference:443:445",
        "reference:443:464",
        "reference:443:469",
        "reference:443:498",
        "reference:444:445",
        "reference:444:548",
        "reference:444:552",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453",
        "reference:540:548",
        "reference:540:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 444,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        442,
        443
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 444,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        442,
        443
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 444,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        442,
        443
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 444,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        445,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:444:445",
        "reference:444:548",
        "reference:444:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 444,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        445,
        447,
        464,
        469,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:444:445",
        "reference:444:548",
        "reference:444:552",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 444,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 52,
      "contributing_pr_ids": [
        275,
        445,
        447,
        453,
        464,
        469,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:444:445",
        "reference:444:548",
        "reference:444:552",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 445,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        234,
        386,
        436,
        442,
        443,
        444
      ],
      "contributing_edge_ids": [
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 445,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        193,
        209,
        210,
        234,
        266,
        315,
        386,
        436,
        442,
        443,
        444
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436",
        "reference:442:444",
        "reference:443:444",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 445,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        144,
        168,
        184,
        185,
        186,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        232,
        234,
        237,
        240,
        259,
        266,
        315,
        386,
        436,
        442,
        443,
        444
      ],
      "contributing_edge_ids": [
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436",
        "reference:442:444",
        "reference:443:444",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 445,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        447,
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:445:447",
        "reference:445:464",
        "reference:445:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 445,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        275,
        447,
        453,
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 445,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        447,
        453,
        456,
        464,
        469,
        556,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:445:447",
        "reference:445:464",
        "reference:445:469",
        "reference:447:275",
        "reference:447:453",
        "reference:453:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 446,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 446,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 446,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 446,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 446,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 446,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 447,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        434,
        442,
        445
      ],
      "contributing_edge_ids": [
        "reference:434:447",
        "reference:442:447",
        "reference:445:447"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 447,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        234,
        386,
        434,
        436,
        442,
        443,
        444,
        445
      ],
      "contributing_edge_ids": [
        "reference:443:434",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 447,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        193,
        209,
        210,
        234,
        266,
        315,
        386,
        434,
        436,
        442,
        443,
        444,
        445
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:443:434",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436",
        "reference:442:444",
        "reference:443:444",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 447,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        275,
        453
      ],
      "contributing_edge_ids": [
        "reference:447:275",
        "reference:447:453"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 447,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        453,
        456,
        556,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:447:275",
        "reference:447:453",
        "reference:453:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 19,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 447,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        453,
        456,
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:447:275",
        "reference:447:453",
        "reference:453:456",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 448,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 448,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 448,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 448,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        453,
        454,
        456,
        464,
        469,
        496,
        498,
        499,
        540
      ],
      "contributing_edge_ids": [
        "reference:448:453",
        "reference:448:454",
        "reference:448:456",
        "reference:448:464",
        "reference:448:469",
        "reference:448:496",
        "reference:448:498",
        "reference:448:499",
        "reference:448:540"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 448,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        453,
        454,
        456,
        460,
        462,
        464,
        469,
        473,
        477,
        496,
        498,
        499,
        523,
        540,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:448:453",
        "reference:448:454",
        "reference:448:456",
        "reference:448:464",
        "reference:448:469",
        "reference:448:496",
        "reference:448:498",
        "reference:448:499",
        "reference:448:540",
        "reference:453:456",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:540:548",
        "reference:540:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 448,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        453,
        454,
        456,
        458,
        460,
        462,
        464,
        465,
        467,
        469,
        473,
        477,
        478,
        490,
        491,
        496,
        498,
        499,
        523,
        531,
        535,
        540,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:448:453",
        "reference:448:454",
        "reference:448:456",
        "reference:448:464",
        "reference:448:469",
        "reference:448:496",
        "reference:448:498",
        "reference:448:499",
        "reference:448:540",
        "reference:453:456",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:523:531",
        "reference:523:535",
        "reference:540:548",
        "reference:540:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 449,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 449,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 449,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 449,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        499
      ],
      "contributing_edge_ids": [
        "reference:449:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 449,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        499
      ],
      "contributing_edge_ids": [
        "reference:449:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 449,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        499
      ],
      "contributing_edge_ids": [
        "reference:449:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 450,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 450,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 450,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 450,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        454,
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:450:454",
        "reference:450:464",
        "reference:450:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 450,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        454,
        456,
        460,
        462,
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:450:454",
        "reference:450:464",
        "reference:450:469",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 450,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        454,
        456,
        458,
        460,
        462,
        464,
        465,
        467,
        469
      ],
      "contributing_edge_ids": [
        "reference:450:454",
        "reference:450:464",
        "reference:450:469",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 451,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        433,
        442
      ],
      "contributing_edge_ids": [
        "reference:433:451",
        "reference:442:451"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 451,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        442
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 451,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433,
        442
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 451,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        453,
        454,
        456,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 451,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        453,
        454,
        456,
        460,
        462,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:453:456",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 451,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        453,
        454,
        456,
        458,
        460,
        462,
        465,
        467,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:451:453",
        "reference:451:454",
        "reference:451:456",
        "reference:451:498",
        "reference:451:499",
        "reference:453:456",
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 452,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        358,
        367
      ],
      "contributing_edge_ids": [
        "reference:358:452",
        "reference:367:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 452,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        346,
        358,
        364,
        367
      ],
      "contributing_edge_ids": [
        "reference:346:367",
        "reference:364:367",
        "reference:358:452",
        "reference:367:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 452,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        194,
        200,
        310,
        325,
        346,
        358,
        364,
        367
      ],
      "contributing_edge_ids": [
        "reference:194:346",
        "reference:200:346",
        "reference:310:346",
        "reference:325:346",
        "reference:346:367",
        "reference:364:367",
        "reference:358:452",
        "reference:367:452"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 452,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 452,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 452,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 453,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        447,
        448,
        451
      ],
      "contributing_edge_ids": [
        "reference:447:453",
        "reference:448:453",
        "reference:451:453"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 453,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        433,
        434,
        442,
        445,
        447,
        448,
        451
      ],
      "contributing_edge_ids": [
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:433:451",
        "reference:442:451",
        "reference:447:453",
        "reference:448:453",
        "reference:451:453"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 453,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        234,
        370,
        386,
        425,
        426,
        433,
        434,
        436,
        442,
        443,
        444,
        445,
        447,
        448,
        451
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:443:434",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:433:451",
        "reference:442:451",
        "reference:447:453",
        "reference:448:453",
        "reference:451:453"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 453,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        456
      ],
      "contributing_edge_ids": [
        "reference:453:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 453,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        456
      ],
      "contributing_edge_ids": [
        "reference:453:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 453,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        456
      ],
      "contributing_edge_ids": [
        "reference:453:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 454,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        433,
        440,
        442,
        448,
        450,
        451
      ],
      "contributing_edge_ids": [
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 454,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        440,
        442,
        448,
        450,
        451
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451",
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 454,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433,
        440,
        442,
        448,
        450,
        451
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451",
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 454,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        456,
        460,
        462
      ],
      "contributing_edge_ids": [
        "reference:454:456",
        "reference:454:460",
        "reference:454:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 454,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        456,
        458,
        460,
        462,
        465,
        467
      ],
      "contributing_edge_ids": [
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 454,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        456,
        458,
        460,
        462,
        464,
        465,
        467,
        490,
        491,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:454:456",
        "reference:454:460",
        "reference:454:462",
        "reference:458:460",
        "reference:458:462",
        "reference:458:464",
        "reference:458:465",
        "reference:458:467",
        "reference:458:498",
        "reference:458:499",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 455,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 455,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 455,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 455,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        456
      ],
      "contributing_edge_ids": [
        "reference:455:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 455,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        456
      ],
      "contributing_edge_ids": [
        "reference:455:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 455,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        456
      ],
      "contributing_edge_ids": [
        "reference:455:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 456,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        433,
        436,
        442,
        448,
        451,
        453,
        454,
        455
      ],
      "contributing_edge_ids": [
        "reference:433:456",
        "reference:436:456",
        "reference:442:456",
        "reference:448:456",
        "reference:451:456",
        "reference:453:456",
        "reference:454:456",
        "reference:455:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 456,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        234,
        266,
        315,
        370,
        386,
        425,
        426,
        433,
        436,
        440,
        442,
        447,
        448,
        450,
        451,
        453,
        454,
        455
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436",
        "reference:433:451",
        "reference:442:451",
        "reference:447:453",
        "reference:448:453",
        "reference:451:453",
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:433:456",
        "reference:436:456",
        "reference:442:456",
        "reference:448:456",
        "reference:451:456",
        "reference:453:456",
        "reference:454:456",
        "reference:455:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 456,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        168,
        193,
        200,
        207,
        209,
        210,
        211,
        216,
        230,
        234,
        259,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433,
        434,
        436,
        440,
        442,
        445,
        447,
        448,
        450,
        451,
        453,
        454,
        455
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:259:266",
        "reference:144:315",
        "reference:168:315",
        "reference:193:315",
        "reference:200:315",
        "reference:207:315",
        "reference:210:315",
        "reference:211:315",
        "reference:216:315",
        "reference:230:315",
        "reference:234:315",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:433:451",
        "reference:442:451",
        "reference:447:453",
        "reference:448:453",
        "reference:451:453",
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:433:456",
        "reference:436:456",
        "reference:442:456",
        "reference:448:456",
        "reference:451:456",
        "reference:453:456",
        "reference:454:456",
        "reference:455:456"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 456,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 456,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 456,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 457,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 457,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 457,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 457,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 457,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 457,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 458,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        460
      ],
      "contributing_edge_ids": [
        "reference:460:458"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 458,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        454,
        460,
        462
      ],
      "contributing_edge_ids": [
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 458,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        433,
        440,
        442,
        448,
        450,
        451,
        454,
        460,
        462
      ],
      "contributing_edge_ids": [
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 458,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        460,
        462,
        464,
        465,
        467,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:458:460",
        "reference:458:462",
        "reference:458:464",
        "reference:458:465",
        "reference:458:467",
        "reference:458:498",
        "reference:458:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 458,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        460,
        462,
        464,
        465,
        467,
        490,
        491,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:458:460",
        "reference:458:462",
        "reference:458:464",
        "reference:458:465",
        "reference:458:467",
        "reference:458:498",
        "reference:458:499",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 458,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        460,
        462,
        464,
        465,
        467,
        490,
        491,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:458:460",
        "reference:458:462",
        "reference:458:464",
        "reference:458:465",
        "reference:458:467",
        "reference:458:498",
        "reference:458:499",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 459,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 459,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 459,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 459,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 459,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 459,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 460,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        454,
        458,
        462
      ],
      "contributing_edge_ids": [
        "reference:454:460",
        "reference:458:460",
        "reference:462:460"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 460,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        433,
        440,
        442,
        448,
        450,
        451,
        454,
        458,
        462
      ],
      "contributing_edge_ids": [
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 460,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        440,
        442,
        448,
        450,
        451,
        454,
        458,
        462
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451",
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 460,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        458,
        462,
        467
      ],
      "contributing_edge_ids": [
        "reference:460:458",
        "reference:460:462",
        "reference:460:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 460,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        458,
        462,
        464,
        465,
        467,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:458:460",
        "reference:458:462",
        "reference:458:464",
        "reference:458:465",
        "reference:458:467",
        "reference:458:498",
        "reference:458:499",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 460,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        458,
        462,
        464,
        465,
        467,
        490,
        491,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:458:460",
        "reference:458:462",
        "reference:458:464",
        "reference:458:465",
        "reference:458:467",
        "reference:458:498",
        "reference:458:499",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 461,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 461,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 461,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 461,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:461:464",
        "reference:461:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 461,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:461:464",
        "reference:461:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 461,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        464,
        469
      ],
      "contributing_edge_ids": [
        "reference:461:464",
        "reference:461:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 462,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        454,
        458,
        460
      ],
      "contributing_edge_ids": [
        "reference:454:462",
        "reference:458:462",
        "reference:460:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 462,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        433,
        440,
        442,
        448,
        450,
        451,
        454,
        458,
        460
      ],
      "contributing_edge_ids": [
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 462,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        440,
        442,
        448,
        450,
        451,
        454,
        458,
        460
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451",
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 462,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        460,
        465
      ],
      "contributing_edge_ids": [
        "reference:462:460",
        "reference:462:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 462,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        458,
        460,
        465,
        467,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 462,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        458,
        460,
        464,
        465,
        467,
        490,
        491,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:458:460",
        "reference:458:462",
        "reference:458:464",
        "reference:458:465",
        "reference:458:467",
        "reference:458:498",
        "reference:458:499",
        "reference:460:458",
        "reference:460:462",
        "reference:460:467",
        "reference:462:460",
        "reference:462:465",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 463,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 463,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 463,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 463,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        465,
        467,
        485,
        498,
        510,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:463:465",
        "reference:463:467",
        "reference:463:485",
        "reference:463:498",
        "reference:463:510",
        "reference:463:548",
        "reference:463:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 463,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        465,
        467,
        473,
        477,
        485,
        490,
        491,
        498,
        499,
        510,
        535,
        539,
        543,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:463:465",
        "reference:463:467",
        "reference:463:485",
        "reference:463:498",
        "reference:463:510",
        "reference:463:548",
        "reference:463:552",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498",
        "reference:485:473",
        "reference:485:477",
        "reference:485:498",
        "reference:485:499",
        "reference:510:535",
        "reference:510:539",
        "reference:510:543",
        "reference:510:548",
        "reference:510:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 34,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 463,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 71,
      "contributing_pr_ids": [
        275,
        465,
        467,
        473,
        477,
        478,
        485,
        490,
        491,
        498,
        499,
        510,
        535,
        538,
        539,
        543,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        618,
        622,
        623,
        624,
        625,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:463:465",
        "reference:463:467",
        "reference:463:485",
        "reference:463:498",
        "reference:463:510",
        "reference:463:548",
        "reference:463:552",
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498",
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:485:473",
        "reference:485:477",
        "reference:485:498",
        "reference:485:499",
        "reference:490:498",
        "reference:510:535",
        "reference:510:539",
        "reference:510:543",
        "reference:510:548",
        "reference:510:552",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:543:547",
        "reference:543:551",
        "reference:543:552",
        "reference:543:556",
        "reference:543:559",
        "reference:543:561",
        "reference:543:562",
        "reference:543:564",
        "reference:543:567",
        "reference:543:568",
        "reference:543:569",
        "reference:543:571",
        "reference:543:574",
        "reference:543:575",
        "reference:543:576",
        "reference:543:578",
        "reference:543:579",
        "reference:543:582",
        "reference:543:583",
        "reference:543:584",
        "reference:543:588",
        "reference:543:591",
        "reference:543:592",
        "reference:543:596",
        "reference:543:600",
        "reference:543:601",
        "reference:543:603",
        "reference:543:612",
        "reference:543:613",
        "reference:543:616",
        "reference:543:618",
        "reference:543:624",
        "reference:543:627",
        "reference:543:632",
        "reference:543:633",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 464,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        442,
        443,
        445,
        448,
        450,
        458,
        461
      ],
      "contributing_edge_ids": [
        "reference:442:464",
        "reference:443:464",
        "reference:445:464",
        "reference:448:464",
        "reference:450:464",
        "reference:458:464",
        "reference:461:464"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 464,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        234,
        386,
        436,
        442,
        443,
        444,
        445,
        448,
        450,
        458,
        460,
        461
      ],
      "contributing_edge_ids": [
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:460:458",
        "reference:442:464",
        "reference:443:464",
        "reference:445:464",
        "reference:448:464",
        "reference:450:464",
        "reference:458:464",
        "reference:461:464"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 464,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        193,
        209,
        210,
        234,
        266,
        315,
        386,
        436,
        442,
        443,
        444,
        445,
        448,
        450,
        454,
        458,
        460,
        461,
        462
      ],
      "contributing_edge_ids": [
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436",
        "reference:442:444",
        "reference:443:444",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:442:464",
        "reference:443:464",
        "reference:445:464",
        "reference:448:464",
        "reference:450:464",
        "reference:458:464",
        "reference:461:464"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 464,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 464,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 464,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 465,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        458,
        462,
        463
      ],
      "contributing_edge_ids": [
        "reference:458:465",
        "reference:462:465",
        "reference:463:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 465,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        454,
        458,
        460,
        462,
        463
      ],
      "contributing_edge_ids": [
        "reference:460:458",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 465,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        433,
        440,
        442,
        448,
        450,
        451,
        454,
        458,
        460,
        462,
        463
      ],
      "contributing_edge_ids": [
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 465,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        467,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 465,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        467,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 465,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        467,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:465:467",
        "reference:465:490",
        "reference:465:491",
        "reference:465:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 466,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 466,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 466,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 466,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 466,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 466,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 467,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        417,
        458,
        460,
        463,
        465
      ],
      "contributing_edge_ids": [
        "reference:417:467",
        "reference:458:467",
        "reference:460:467",
        "reference:463:467",
        "reference:465:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 467,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        266,
        318,
        417,
        454,
        458,
        460,
        462,
        463,
        465
      ],
      "contributing_edge_ids": [
        "reference:266:417",
        "reference:318:417",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:417:467",
        "reference:458:467",
        "reference:460:467",
        "reference:463:467",
        "reference:465:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 467,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        259,
        266,
        318,
        417,
        433,
        440,
        442,
        448,
        450,
        451,
        454,
        458,
        460,
        462,
        463,
        465
      ],
      "contributing_edge_ids": [
        "reference:259:266",
        "reference:266:417",
        "reference:318:417",
        "reference:433:454",
        "reference:440:454",
        "reference:442:454",
        "reference:448:454",
        "reference:450:454",
        "reference:451:454",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:417:467",
        "reference:458:467",
        "reference:460:467",
        "reference:463:467",
        "reference:465:467"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 467,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 467,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 467,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 468,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 468,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 468,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 468,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 468,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 468,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 469,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        130,
        437,
        440,
        441,
        442,
        443,
        445,
        448,
        450,
        461
      ],
      "contributing_edge_ids": [
        "reference:2:469",
        "reference:3:469",
        "reference:4:469",
        "reference:5:469",
        "reference:6:469",
        "reference:7:469",
        "reference:10:469",
        "reference:18:469",
        "reference:20:469",
        "reference:21:469",
        "reference:23:469",
        "reference:24:469",
        "reference:29:469",
        "reference:31:469",
        "reference:32:469",
        "reference:33:469",
        "reference:36:469",
        "reference:62:469",
        "reference:97:469",
        "reference:104:469",
        "reference:115:469",
        "reference:117:469",
        "reference:130:469",
        "reference:437:469",
        "reference:440:469",
        "reference:441:469",
        "reference:442:469",
        "reference:443:469",
        "reference:445:469",
        "reference:448:469",
        "reference:450:469",
        "reference:461:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 469,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 46,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        130,
        234,
        386,
        433,
        436,
        437,
        440,
        441,
        442,
        443,
        444,
        445,
        448,
        450,
        461
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:433:437",
        "reference:440:441",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:2:469",
        "reference:3:469",
        "reference:4:469",
        "reference:5:469",
        "reference:6:469",
        "reference:7:469",
        "reference:10:469",
        "reference:18:469",
        "reference:20:469",
        "reference:21:469",
        "reference:23:469",
        "reference:24:469",
        "reference:29:469",
        "reference:31:469",
        "reference:32:469",
        "reference:33:469",
        "reference:36:469",
        "reference:62:469",
        "reference:97:469",
        "reference:104:469",
        "reference:115:469",
        "reference:117:469",
        "reference:130:469",
        "reference:437:469",
        "reference:440:469",
        "reference:441:469",
        "reference:442:469",
        "reference:443:469",
        "reference:445:469",
        "reference:448:469",
        "reference:450:469",
        "reference:461:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": 131,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 469,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        130,
        144,
        193,
        209,
        210,
        234,
        266,
        315,
        370,
        386,
        425,
        426,
        433,
        436,
        437,
        440,
        441,
        442,
        443,
        444,
        445,
        448,
        450,
        461
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:23:25",
        "reference:21:28",
        "reference:23:28",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:234:436",
        "reference:266:436",
        "reference:315:436",
        "reference:433:437",
        "reference:440:441",
        "reference:442:444",
        "reference:443:444",
        "reference:234:445",
        "reference:386:445",
        "reference:436:445",
        "reference:442:445",
        "reference:443:445",
        "reference:444:445",
        "reference:2:469",
        "reference:3:469",
        "reference:4:469",
        "reference:5:469",
        "reference:6:469",
        "reference:7:469",
        "reference:10:469",
        "reference:18:469",
        "reference:20:469",
        "reference:21:469",
        "reference:23:469",
        "reference:24:469",
        "reference:29:469",
        "reference:31:469",
        "reference:32:469",
        "reference:33:469",
        "reference:36:469",
        "reference:62:469",
        "reference:97:469",
        "reference:104:469",
        "reference:115:469",
        "reference:117:469",
        "reference:130:469",
        "reference:437:469",
        "reference:440:469",
        "reference:441:469",
        "reference:442:469",
        "reference:443:469",
        "reference:445:469",
        "reference:448:469",
        "reference:450:469",
        "reference:461:469"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 18,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 469,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 469,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 469,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 470,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 470,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 470,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 470,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:470:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 470,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:470:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 470,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:470:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 471,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 471,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 471,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 471,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        490,
        498
      ],
      "contributing_edge_ids": [
        "reference:471:490",
        "reference:471:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 471,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        490,
        498
      ],
      "contributing_edge_ids": [
        "reference:471:490",
        "reference:471:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 471,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        490,
        498
      ],
      "contributing_edge_ids": [
        "reference:471:490",
        "reference:471:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 472,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 472,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 472,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 472,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        498,
        540
      ],
      "contributing_edge_ids": [
        "reference:472:498",
        "reference:472:540"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 472,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        498,
        540,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:472:498",
        "reference:472:540",
        "reference:540:548",
        "reference:540:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 472,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        498,
        540,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:472:498",
        "reference:472:540",
        "reference:540:548",
        "reference:540:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 473,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        477,
        478,
        480,
        483,
        484,
        485,
        493,
        496,
        501
      ],
      "contributing_edge_ids": [
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 473,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        368,
        448,
        463,
        477,
        478,
        480,
        483,
        484,
        485,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:473:478",
        "reference:463:485",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 473,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        318,
        364,
        366,
        368,
        448,
        463,
        477,
        478,
        480,
        483,
        484,
        485,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:318:368",
        "reference:364:368",
        "reference:366:368",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:473:478",
        "reference:463:485",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 473,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 473,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 473,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 474,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 474,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 474,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 474,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 474,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 474,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 475,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 475,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 475,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 475,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 475,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 475,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 476,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 476,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 476,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 476,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:476:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 476,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:476:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 476,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:476:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 477,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        368,
        473,
        485,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 477,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        318,
        364,
        366,
        368,
        448,
        463,
        473,
        478,
        480,
        483,
        484,
        485,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:318:368",
        "reference:364:368",
        "reference:366:368",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:463:485",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 477,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        318,
        364,
        366,
        368,
        448,
        463,
        473,
        478,
        480,
        483,
        484,
        485,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:318:366",
        "reference:364:366",
        "reference:318:368",
        "reference:364:368",
        "reference:366:368",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:473:478",
        "reference:463:485",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 477,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        473
      ],
      "contributing_edge_ids": [
        "reference:477:473"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 477,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        473,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 477,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        473,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 478,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        473
      ],
      "contributing_edge_ids": [
        "reference:473:478"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 478,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        473,
        477,
        480,
        483,
        484,
        485,
        493,
        496,
        501
      ],
      "contributing_edge_ids": [
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:473:478"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 478,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        368,
        448,
        463,
        473,
        477,
        480,
        483,
        484,
        485,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:473:478",
        "reference:463:485",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 478,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        473,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:478:473",
        "reference:478:491",
        "reference:478:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 478,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        473,
        477,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 478,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        473,
        477,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 479,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 479,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 479,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 479,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 479,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 479,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 480,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 480,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 480,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 480,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        473,
        498
      ],
      "contributing_edge_ids": [
        "reference:480:473",
        "reference:480:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 480,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:480:473",
        "reference:480:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 480,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:480:473",
        "reference:480:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 481,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 481,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 481,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 481,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 481,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 481,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 482,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 482,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 482,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 482,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 482,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 482,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 483,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 483,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 483,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 483,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        473,
        498
      ],
      "contributing_edge_ids": [
        "reference:483:473",
        "reference:483:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 483,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:483:473",
        "reference:483:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 483,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:483:473",
        "reference:483:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 484,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 484,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 484,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 484,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        473,
        496,
        498,
        499,
        501,
        508,
        523,
        531,
        535,
        548,
        551,
        552,
        557,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:484:473",
        "reference:484:496",
        "reference:484:498",
        "reference:484:499",
        "reference:484:501",
        "reference:484:508",
        "reference:484:523",
        "reference:484:531",
        "reference:484:535",
        "reference:484:548",
        "reference:484:551",
        "reference:484:552",
        "reference:484:557",
        "reference:484:568",
        "reference:484:569",
        "reference:484:574",
        "reference:484:576",
        "reference:484:578",
        "reference:484:582",
        "reference:484:584",
        "reference:484:588",
        "reference:484:591",
        "reference:484:592",
        "reference:484:596",
        "reference:484:600",
        "reference:484:601",
        "reference:484:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 484,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 70,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        496,
        498,
        499,
        501,
        508,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:484:473",
        "reference:484:496",
        "reference:484:498",
        "reference:484:499",
        "reference:484:501",
        "reference:484:508",
        "reference:484:523",
        "reference:484:531",
        "reference:484:535",
        "reference:484:548",
        "reference:484:551",
        "reference:484:552",
        "reference:484:557",
        "reference:484:568",
        "reference:484:569",
        "reference:484:574",
        "reference:484:576",
        "reference:484:578",
        "reference:484:582",
        "reference:484:584",
        "reference:484:588",
        "reference:484:591",
        "reference:484:592",
        "reference:484:596",
        "reference:484:600",
        "reference:484:601",
        "reference:484:603",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:501:473",
        "reference:501:477",
        "reference:501:508",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 285,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 484,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 81,
      "contributing_pr_ids": [
        275,
        473,
        477,
        478,
        490,
        491,
        496,
        498,
        499,
        501,
        508,
        523,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        567,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:484:473",
        "reference:484:496",
        "reference:484:498",
        "reference:484:499",
        "reference:484:501",
        "reference:484:508",
        "reference:484:523",
        "reference:484:531",
        "reference:484:535",
        "reference:484:548",
        "reference:484:551",
        "reference:484:552",
        "reference:484:557",
        "reference:484:568",
        "reference:484:569",
        "reference:484:574",
        "reference:484:576",
        "reference:484:578",
        "reference:484:582",
        "reference:484:584",
        "reference:484:588",
        "reference:484:591",
        "reference:484:592",
        "reference:484:596",
        "reference:484:600",
        "reference:484:601",
        "reference:484:603",
        "reference:490:498",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:501:473",
        "reference:501:477",
        "reference:501:508",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 485,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        463
      ],
      "contributing_edge_ids": [
        "reference:463:485"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 485,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        463
      ],
      "contributing_edge_ids": [
        "reference:463:485"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 485,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        463
      ],
      "contributing_edge_ids": [
        "reference:463:485"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 485,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        473,
        477,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:485:473",
        "reference:485:477",
        "reference:485:498",
        "reference:485:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 485,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:485:473",
        "reference:485:477",
        "reference:485:498",
        "reference:485:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 485,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        499
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:485:473",
        "reference:485:477",
        "reference:485:498",
        "reference:485:499",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 486,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 486,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 486,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 486,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 486,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 486,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 487,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 487,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 487,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 487,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 487,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 487,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 488,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 488,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 488,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 488,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        530,
        565,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:488:530",
        "reference:488:565",
        "reference:488:566",
        "reference:488:570",
        "reference:488:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 488,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        530,
        565,
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:488:530",
        "reference:488:565",
        "reference:488:566",
        "reference:488:570",
        "reference:488:573",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 488,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        530,
        565,
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:488:530",
        "reference:488:565",
        "reference:488:566",
        "reference:488:570",
        "reference:488:573",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 489,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 489,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 489,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 489,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 489,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 489,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 490,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        442,
        465,
        471,
        473
      ],
      "contributing_edge_ids": [
        "reference:442:490",
        "reference:465:490",
        "reference:471:490",
        "reference:473:490"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 490,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        442,
        458,
        462,
        463,
        465,
        471,
        473,
        477,
        478,
        480,
        483,
        484,
        485,
        493,
        496,
        501
      ],
      "contributing_edge_ids": [
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:442:490",
        "reference:465:490",
        "reference:471:490",
        "reference:473:490"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 490,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        368,
        442,
        448,
        454,
        458,
        460,
        462,
        463,
        465,
        471,
        473,
        477,
        478,
        480,
        483,
        484,
        485,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:460:458",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:473:478",
        "reference:463:485",
        "reference:442:490",
        "reference:465:490",
        "reference:471:490",
        "reference:473:490",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 490,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 490,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 490,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        498
      ],
      "contributing_edge_ids": [
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 491,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        465,
        473,
        478,
        493
      ],
      "contributing_edge_ids": [
        "reference:465:491",
        "reference:473:491",
        "reference:478:491",
        "reference:493:491"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 491,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        458,
        462,
        463,
        465,
        473,
        477,
        478,
        480,
        483,
        484,
        485,
        493,
        496,
        501
      ],
      "contributing_edge_ids": [
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:473:478",
        "reference:465:491",
        "reference:473:491",
        "reference:478:491",
        "reference:493:491"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 491,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        368,
        448,
        454,
        458,
        460,
        462,
        463,
        465,
        473,
        477,
        478,
        480,
        483,
        484,
        485,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:460:458",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:473:478",
        "reference:463:485",
        "reference:465:491",
        "reference:473:491",
        "reference:478:491",
        "reference:493:491",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 491,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 491,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 491,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 492,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 492,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 492,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 492,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 492,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 492,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 493,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 493,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 493,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 493,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        473,
        491,
        496,
        499,
        508,
        514,
        518,
        522,
        523,
        531,
        540,
        545,
        548,
        552,
        553,
        566,
        590
      ],
      "contributing_edge_ids": [
        "reference:493:473",
        "reference:493:491",
        "reference:493:496",
        "reference:493:499",
        "reference:493:508",
        "reference:493:514",
        "reference:493:518",
        "reference:493:522",
        "reference:493:523",
        "reference:493:531",
        "reference:493:540",
        "reference:493:545",
        "reference:493:548",
        "reference:493:552",
        "reference:493:553",
        "reference:493:566",
        "reference:493:590"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 493,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 53,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        496,
        498,
        499,
        508,
        514,
        518,
        522,
        523,
        531,
        533,
        534,
        535,
        538,
        540,
        545,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        612,
        622
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:493:473",
        "reference:493:491",
        "reference:493:496",
        "reference:493:499",
        "reference:493:508",
        "reference:493:514",
        "reference:493:518",
        "reference:493:522",
        "reference:493:523",
        "reference:493:531",
        "reference:493:540",
        "reference:493:545",
        "reference:493:548",
        "reference:493:552",
        "reference:493:553",
        "reference:493:566",
        "reference:493:590",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:514:523",
        "reference:514:531",
        "reference:514:568",
        "reference:514:574",
        "reference:514:576",
        "reference:514:578",
        "reference:514:582",
        "reference:514:584",
        "reference:514:588",
        "reference:514:591",
        "reference:514:592",
        "reference:514:596",
        "reference:514:600",
        "reference:514:601",
        "reference:514:603",
        "reference:518:523",
        "reference:522:531",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:540:548",
        "reference:540:552",
        "reference:545:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:566:570",
        "reference:566:573",
        "reference:590:597",
        "reference:590:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 83,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 493,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 83,
      "contributing_pr_ids": [
        275,
        473,
        477,
        478,
        490,
        491,
        496,
        498,
        499,
        508,
        514,
        518,
        522,
        523,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        540,
        545,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        567,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:490:498",
        "reference:493:473",
        "reference:493:491",
        "reference:493:496",
        "reference:493:499",
        "reference:493:508",
        "reference:493:514",
        "reference:493:518",
        "reference:493:522",
        "reference:493:523",
        "reference:493:531",
        "reference:493:540",
        "reference:493:545",
        "reference:493:548",
        "reference:493:552",
        "reference:493:553",
        "reference:493:566",
        "reference:493:590",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:514:523",
        "reference:514:531",
        "reference:514:568",
        "reference:514:574",
        "reference:514:576",
        "reference:514:578",
        "reference:514:582",
        "reference:514:584",
        "reference:514:588",
        "reference:514:591",
        "reference:514:592",
        "reference:514:596",
        "reference:514:600",
        "reference:514:601",
        "reference:514:603",
        "reference:518:523",
        "reference:522:531",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:540:548",
        "reference:540:552",
        "reference:545:552",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 494,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 494,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 494,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 494,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        496,
        499
      ],
      "contributing_edge_ids": [
        "reference:494:496",
        "reference:494:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 494,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        473,
        477,
        496,
        499,
        523
      ],
      "contributing_edge_ids": [
        "reference:494:496",
        "reference:494:499",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 494,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        496,
        498,
        499,
        523,
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:494:496",
        "reference:494:499",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:523:531",
        "reference:523:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 495,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 495,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 495,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 495,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        499,
        508
      ],
      "contributing_edge_ids": [
        "reference:495:499",
        "reference:495:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 495,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        499,
        508
      ],
      "contributing_edge_ids": [
        "reference:495:499",
        "reference:495:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 495,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        499,
        508
      ],
      "contributing_edge_ids": [
        "reference:495:499",
        "reference:495:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 496,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        448,
        484,
        493,
        494
      ],
      "contributing_edge_ids": [
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 496,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        448,
        484,
        493,
        494
      ],
      "contributing_edge_ids": [
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 496,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        448,
        484,
        493,
        494
      ],
      "contributing_edge_ids": [
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 496,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        473,
        477,
        523
      ],
      "contributing_edge_ids": [
        "reference:496:473",
        "reference:496:477",
        "reference:496:523"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 496,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        523,
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:523:531",
        "reference:523:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 496,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:490:498",
        "reference:496:473",
        "reference:496:477",
        "reference:496:523",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 497,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 497,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 497,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 497,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 497,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 497,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 498,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        442,
        443,
        448,
        451,
        458,
        463,
        465,
        470,
        471,
        472,
        473,
        476,
        478,
        480,
        483,
        484,
        485,
        490
      ],
      "contributing_edge_ids": [
        "reference:442:498",
        "reference:443:498",
        "reference:448:498",
        "reference:451:498",
        "reference:458:498",
        "reference:463:498",
        "reference:465:498",
        "reference:470:498",
        "reference:471:498",
        "reference:472:498",
        "reference:473:498",
        "reference:476:498",
        "reference:478:498",
        "reference:480:498",
        "reference:483:498",
        "reference:484:498",
        "reference:485:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 498,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        433,
        442,
        443,
        448,
        451,
        458,
        460,
        462,
        463,
        465,
        470,
        471,
        472,
        473,
        476,
        477,
        478,
        480,
        483,
        484,
        485,
        490,
        493,
        496,
        501
      ],
      "contributing_edge_ids": [
        "reference:433:451",
        "reference:442:451",
        "reference:460:458",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:473:478",
        "reference:463:485",
        "reference:442:490",
        "reference:465:490",
        "reference:471:490",
        "reference:473:490",
        "reference:442:498",
        "reference:443:498",
        "reference:448:498",
        "reference:451:498",
        "reference:458:498",
        "reference:463:498",
        "reference:465:498",
        "reference:470:498",
        "reference:471:498",
        "reference:472:498",
        "reference:473:498",
        "reference:476:498",
        "reference:478:498",
        "reference:480:498",
        "reference:483:498",
        "reference:484:498",
        "reference:485:498",
        "reference:490:498"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 498,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        368,
        370,
        386,
        425,
        426,
        433,
        442,
        443,
        448,
        451,
        454,
        458,
        460,
        462,
        463,
        465,
        470,
        471,
        472,
        473,
        476,
        477,
        478,
        480,
        483,
        484,
        485,
        490,
        493,
        494,
        496,
        501,
        505,
        507
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:454:462",
        "reference:458:462",
        "reference:460:462",
        "reference:458:465",
        "reference:462:465",
        "reference:463:465",
        "reference:477:473",
        "reference:478:473",
        "reference:480:473",
        "reference:483:473",
        "reference:484:473",
        "reference:485:473",
        "reference:493:473",
        "reference:496:473",
        "reference:501:473",
        "reference:368:477",
        "reference:473:477",
        "reference:485:477",
        "reference:496:477",
        "reference:501:477",
        "reference:505:477",
        "reference:507:477",
        "reference:473:478",
        "reference:463:485",
        "reference:442:490",
        "reference:465:490",
        "reference:471:490",
        "reference:473:490",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:442:498",
        "reference:443:498",
        "reference:448:498",
        "reference:451:498",
        "reference:458:498",
        "reference:463:498",
        "reference:465:498",
        "reference:470:498",
        "reference:471:498",
        "reference:472:498",
        "reference:473:498",
        "reference:476:498",
        "reference:478:498",
        "reference:480:498",
        "reference:483:498",
        "reference:484:498",
        "reference:485:498",
        "reference:490:498",
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 498,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 498,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 498,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 499,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        433,
        442,
        448,
        449,
        451,
        458,
        484,
        485,
        493,
        494,
        495
      ],
      "contributing_edge_ids": [
        "reference:433:499",
        "reference:442:499",
        "reference:448:499",
        "reference:449:499",
        "reference:451:499",
        "reference:458:499",
        "reference:484:499",
        "reference:485:499",
        "reference:493:499",
        "reference:494:499",
        "reference:495:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 499,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        442,
        448,
        449,
        451,
        458,
        460,
        463,
        484,
        485,
        493,
        494,
        495
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451",
        "reference:460:458",
        "reference:463:485",
        "reference:433:499",
        "reference:442:499",
        "reference:448:499",
        "reference:449:499",
        "reference:451:499",
        "reference:458:499",
        "reference:484:499",
        "reference:485:499",
        "reference:493:499",
        "reference:494:499",
        "reference:495:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 499,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 53,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433,
        442,
        448,
        449,
        451,
        454,
        458,
        460,
        462,
        463,
        484,
        485,
        493,
        494,
        495
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:433:451",
        "reference:442:451",
        "reference:460:458",
        "reference:454:460",
        "reference:458:460",
        "reference:462:460",
        "reference:463:485",
        "reference:433:499",
        "reference:442:499",
        "reference:448:499",
        "reference:449:499",
        "reference:451:499",
        "reference:458:499",
        "reference:484:499",
        "reference:485:499",
        "reference:493:499",
        "reference:494:499",
        "reference:495:499"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 499,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 499,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 499,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 500,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 500,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 500,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 500,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 500,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 500,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 501,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        484
      ],
      "contributing_edge_ids": [
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 501,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        484
      ],
      "contributing_edge_ids": [
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 501,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        484
      ],
      "contributing_edge_ids": [
        "reference:484:501"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 501,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        473,
        477,
        508
      ],
      "contributing_edge_ids": [
        "reference:501:473",
        "reference:501:477",
        "reference:501:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 501,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        508
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:501:473",
        "reference:501:477",
        "reference:501:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 501,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        508
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:478:473",
        "reference:478:491",
        "reference:478:498",
        "reference:490:498",
        "reference:501:473",
        "reference:501:477",
        "reference:501:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 502,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 502,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 502,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 502,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 502,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 502,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 503,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 503,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 503,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 503,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:503:548",
        "reference:503:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 503,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:503:548",
        "reference:503:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 503,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        275,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:503:548",
        "reference:503:552",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 504,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 504,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 504,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 504,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 504,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 504,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 505,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 505,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 505,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 505,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        477,
        523,
        569
      ],
      "contributing_edge_ids": [
        "reference:505:477",
        "reference:505:523",
        "reference:505:569"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 505,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        473,
        477,
        523,
        531,
        535,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        584,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:477:473",
        "reference:505:477",
        "reference:505:523",
        "reference:505:569",
        "reference:523:531",
        "reference:523:535",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 29,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 505,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 68,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:505:477",
        "reference:505:523",
        "reference:505:569",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 506,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 506,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 506,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 506,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 506,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 506,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 507,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 507,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 507,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 507,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        477,
        514,
        517,
        523,
        531,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:507:477",
        "reference:507:514",
        "reference:507:517",
        "reference:507:523",
        "reference:507:531",
        "reference:507:568",
        "reference:507:574",
        "reference:507:576",
        "reference:507:578",
        "reference:507:582",
        "reference:507:584",
        "reference:507:588",
        "reference:507:591",
        "reference:507:592",
        "reference:507:596",
        "reference:507:600",
        "reference:507:601",
        "reference:507:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 507,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        473,
        477,
        514,
        517,
        523,
        531,
        533,
        534,
        535,
        538,
        548,
        552,
        553,
        556,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:477:473",
        "reference:507:477",
        "reference:507:514",
        "reference:507:517",
        "reference:507:523",
        "reference:507:531",
        "reference:507:568",
        "reference:507:574",
        "reference:507:576",
        "reference:507:578",
        "reference:507:582",
        "reference:507:584",
        "reference:507:588",
        "reference:507:591",
        "reference:507:592",
        "reference:507:596",
        "reference:507:600",
        "reference:507:601",
        "reference:507:603",
        "reference:514:523",
        "reference:514:531",
        "reference:514:568",
        "reference:514:574",
        "reference:514:576",
        "reference:514:578",
        "reference:514:582",
        "reference:514:584",
        "reference:514:588",
        "reference:514:591",
        "reference:514:592",
        "reference:514:596",
        "reference:514:600",
        "reference:514:601",
        "reference:514:603",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 203,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 507,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 76,
      "contributing_pr_ids": [
        473,
        477,
        478,
        490,
        491,
        498,
        514,
        517,
        523,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:473:477",
        "reference:473:478",
        "reference:473:490",
        "reference:473:491",
        "reference:473:498",
        "reference:477:473",
        "reference:507:477",
        "reference:507:514",
        "reference:507:517",
        "reference:507:523",
        "reference:507:531",
        "reference:507:568",
        "reference:507:574",
        "reference:507:576",
        "reference:507:578",
        "reference:507:582",
        "reference:507:584",
        "reference:507:588",
        "reference:507:591",
        "reference:507:592",
        "reference:507:596",
        "reference:507:600",
        "reference:507:601",
        "reference:507:603",
        "reference:514:523",
        "reference:514:531",
        "reference:514:568",
        "reference:514:574",
        "reference:514:576",
        "reference:514:578",
        "reference:514:582",
        "reference:514:584",
        "reference:514:588",
        "reference:514:591",
        "reference:514:592",
        "reference:514:596",
        "reference:514:600",
        "reference:514:601",
        "reference:514:603",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 508,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        484,
        493,
        495,
        501
      ],
      "contributing_edge_ids": [
        "reference:484:508",
        "reference:493:508",
        "reference:495:508",
        "reference:501:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 508,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        484,
        493,
        495,
        501
      ],
      "contributing_edge_ids": [
        "reference:484:501",
        "reference:484:508",
        "reference:493:508",
        "reference:495:508",
        "reference:501:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 508,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        484,
        493,
        495,
        501
      ],
      "contributing_edge_ids": [
        "reference:484:501",
        "reference:484:508",
        "reference:493:508",
        "reference:495:508",
        "reference:501:508"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 508,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 508,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 508,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 509,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 509,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 509,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 509,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        528,
        581,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:509:528",
        "reference:509:581",
        "reference:509:607",
        "reference:509:609",
        "reference:509:614",
        "reference:509:615",
        "reference:509:617",
        "reference:509:622",
        "reference:509:623",
        "reference:509:625",
        "reference:509:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 509,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        528,
        581,
        585,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:509:528",
        "reference:509:581",
        "reference:509:607",
        "reference:509:609",
        "reference:509:614",
        "reference:509:615",
        "reference:509:617",
        "reference:509:622",
        "reference:509:623",
        "reference:509:625",
        "reference:509:629",
        "reference:528:581",
        "reference:528:585",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 51,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 509,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        528,
        581,
        585,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:509:528",
        "reference:509:581",
        "reference:509:607",
        "reference:509:609",
        "reference:509:614",
        "reference:509:615",
        "reference:509:617",
        "reference:509:622",
        "reference:509:623",
        "reference:509:625",
        "reference:509:629",
        "reference:528:581",
        "reference:528:585",
        "reference:585:605",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 510,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        463
      ],
      "contributing_edge_ids": [
        "reference:463:510"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 510,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        463
      ],
      "contributing_edge_ids": [
        "reference:463:510"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 510,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        463
      ],
      "contributing_edge_ids": [
        "reference:463:510"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 510,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        535,
        539,
        543,
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:510:535",
        "reference:510:539",
        "reference:510:543",
        "reference:510:548",
        "reference:510:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 510,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        535,
        538,
        539,
        543,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        612,
        613,
        616,
        618,
        624,
        627,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:510:535",
        "reference:510:539",
        "reference:510:543",
        "reference:510:548",
        "reference:510:552",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:543:547",
        "reference:543:551",
        "reference:543:552",
        "reference:543:556",
        "reference:543:559",
        "reference:543:561",
        "reference:543:562",
        "reference:543:564",
        "reference:543:567",
        "reference:543:568",
        "reference:543:569",
        "reference:543:571",
        "reference:543:574",
        "reference:543:575",
        "reference:543:576",
        "reference:543:578",
        "reference:543:579",
        "reference:543:582",
        "reference:543:583",
        "reference:543:584",
        "reference:543:588",
        "reference:543:591",
        "reference:543:592",
        "reference:543:596",
        "reference:543:600",
        "reference:543:601",
        "reference:543:603",
        "reference:543:612",
        "reference:543:613",
        "reference:543:616",
        "reference:543:618",
        "reference:543:624",
        "reference:543:627",
        "reference:543:632",
        "reference:543:633",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 80,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 510,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        275,
        535,
        538,
        539,
        543,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        618,
        622,
        623,
        624,
        625,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:510:535",
        "reference:510:539",
        "reference:510:543",
        "reference:510:548",
        "reference:510:552",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:543:547",
        "reference:543:551",
        "reference:543:552",
        "reference:543:556",
        "reference:543:559",
        "reference:543:561",
        "reference:543:562",
        "reference:543:564",
        "reference:543:567",
        "reference:543:568",
        "reference:543:569",
        "reference:543:571",
        "reference:543:574",
        "reference:543:575",
        "reference:543:576",
        "reference:543:578",
        "reference:543:579",
        "reference:543:582",
        "reference:543:583",
        "reference:543:584",
        "reference:543:588",
        "reference:543:591",
        "reference:543:592",
        "reference:543:596",
        "reference:543:600",
        "reference:543:601",
        "reference:543:603",
        "reference:543:612",
        "reference:543:613",
        "reference:543:616",
        "reference:543:618",
        "reference:543:624",
        "reference:543:627",
        "reference:543:632",
        "reference:543:633",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:561:562",
        "reference:561:564",
        "reference:561:567",
        "reference:561:568",
        "reference:561:569",
        "reference:561:574",
        "reference:561:576",
        "reference:561:578",
        "reference:561:582",
        "reference:561:584",
        "reference:561:588",
        "reference:561:591",
        "reference:561:592",
        "reference:561:596",
        "reference:561:600",
        "reference:561:601",
        "reference:561:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:618:629",
        "reference:624:629",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 511,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        64
      ],
      "contributing_edge_ids": [
        "reference:64:511"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 511,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:64:511"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 511,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:64:511"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 511,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        530,
        565,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 511,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        530,
        565,
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 511,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        530,
        565,
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:511:530",
        "reference:511:565",
        "reference:511:566",
        "reference:511:570",
        "reference:511:573",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 512,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 512,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 512,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 512,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 512,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 512,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 513,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        197,
        200,
        234
      ],
      "contributing_edge_ids": [
        "reference:197:513",
        "reference:200:513",
        "reference:234:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 513,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        187,
        189,
        193,
        197,
        200,
        209,
        210,
        234
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:513",
        "reference:200:513",
        "reference:234:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 13,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 513,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        57,
        62,
        97,
        104,
        115,
        117,
        124,
        125,
        128,
        130,
        131,
        144,
        154,
        161,
        162,
        163,
        165,
        166,
        168,
        175,
        181,
        182,
        184,
        185,
        186,
        187,
        189,
        191,
        192,
        193,
        197,
        200,
        207,
        209,
        210,
        211,
        230,
        232,
        234,
        237,
        240
      ],
      "contributing_edge_ids": [
        "reference:104:131",
        "reference:117:131",
        "reference:124:131",
        "reference:125:131",
        "reference:128:131",
        "reference:130:131",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:161:162",
        "reference:163:166",
        "reference:117:168",
        "reference:57:175",
        "reference:165:175",
        "reference:168:187",
        "reference:181:187",
        "reference:182:187",
        "reference:184:187",
        "reference:185:187",
        "reference:186:187",
        "reference:131:189",
        "reference:144:189",
        "reference:154:189",
        "reference:162:189",
        "reference:166:189",
        "reference:168:189",
        "reference:175:189",
        "reference:168:193",
        "reference:184:193",
        "reference:185:193",
        "reference:186:193",
        "reference:191:193",
        "reference:192:193",
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:210",
        "reference:197:210",
        "reference:200:210",
        "reference:207:210",
        "reference:211:210",
        "reference:230:210",
        "reference:232:210",
        "reference:234:210",
        "reference:237:210",
        "reference:240:210",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:513",
        "reference:200:513",
        "reference:234:513"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 513,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        528,
        581
      ],
      "contributing_edge_ids": [
        "reference:513:528",
        "reference:513:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 513,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        528,
        581,
        585
      ],
      "contributing_edge_ids": [
        "reference:513:528",
        "reference:513:581",
        "reference:528:581",
        "reference:528:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 513,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        528,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:513:528",
        "reference:513:581",
        "reference:528:581",
        "reference:528:585",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 514,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        493,
        507
      ],
      "contributing_edge_ids": [
        "reference:493:514",
        "reference:507:514"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 514,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        493,
        507
      ],
      "contributing_edge_ids": [
        "reference:493:514",
        "reference:507:514"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 514,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        493,
        507
      ],
      "contributing_edge_ids": [
        "reference:493:514",
        "reference:507:514"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 514,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        523,
        531,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:514:523",
        "reference:514:531",
        "reference:514:568",
        "reference:514:574",
        "reference:514:576",
        "reference:514:578",
        "reference:514:582",
        "reference:514:584",
        "reference:514:588",
        "reference:514:591",
        "reference:514:592",
        "reference:514:596",
        "reference:514:600",
        "reference:514:601",
        "reference:514:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 514,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        523,
        531,
        533,
        534,
        535,
        538,
        548,
        552,
        553,
        556,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:514:523",
        "reference:514:531",
        "reference:514:568",
        "reference:514:574",
        "reference:514:576",
        "reference:514:578",
        "reference:514:582",
        "reference:514:584",
        "reference:514:588",
        "reference:514:591",
        "reference:514:592",
        "reference:514:596",
        "reference:514:600",
        "reference:514:601",
        "reference:514:603",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 187,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 514,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 68,
      "contributing_pr_ids": [
        523,
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:514:523",
        "reference:514:531",
        "reference:514:568",
        "reference:514:574",
        "reference:514:576",
        "reference:514:578",
        "reference:514:582",
        "reference:514:584",
        "reference:514:588",
        "reference:514:591",
        "reference:514:592",
        "reference:514:596",
        "reference:514:600",
        "reference:514:601",
        "reference:514:603",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 515,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 515,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 515,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 515,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 515,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 515,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 516,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 516,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 516,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 516,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        528,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:516:528",
        "reference:516:607",
        "reference:516:609",
        "reference:516:614",
        "reference:516:615",
        "reference:516:617",
        "reference:516:622",
        "reference:516:623",
        "reference:516:625",
        "reference:516:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 516,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        528,
        581,
        585,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:516:528",
        "reference:516:607",
        "reference:516:609",
        "reference:516:614",
        "reference:516:615",
        "reference:516:617",
        "reference:516:622",
        "reference:516:623",
        "reference:516:625",
        "reference:516:629",
        "reference:528:581",
        "reference:528:585",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 51,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 516,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        528,
        581,
        585,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:516:528",
        "reference:516:607",
        "reference:516:609",
        "reference:516:614",
        "reference:516:615",
        "reference:516:617",
        "reference:516:622",
        "reference:516:623",
        "reference:516:625",
        "reference:516:629",
        "reference:528:581",
        "reference:528:585",
        "reference:585:605",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 517,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        507
      ],
      "contributing_edge_ids": [
        "reference:507:517"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 517,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        507
      ],
      "contributing_edge_ids": [
        "reference:507:517"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 517,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        507
      ],
      "contributing_edge_ids": [
        "reference:507:517"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 517,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 517,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 517,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 518,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:518"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 518,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:518"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 518,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:518"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 518,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        523
      ],
      "contributing_edge_ids": [
        "reference:518:523"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 518,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        523,
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:518:523",
        "reference:523:531",
        "reference:523:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 518,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        523,
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:518:523",
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 519,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        64
      ],
      "contributing_edge_ids": [
        "reference:64:519"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 519,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:64:519"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 519,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:64:519"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 519,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        526,
        530,
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 519,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        526,
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 12,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 519,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        526,
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:519:526",
        "reference:519:530",
        "reference:519:566",
        "reference:519:570",
        "reference:519:573",
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 520,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 520,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 520,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 520,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        531,
        608
      ],
      "contributing_edge_ids": [
        "reference:520:531",
        "reference:520:608"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 520,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        538,
        548,
        552,
        553,
        556,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        584,
        585,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        608,
        622
      ],
      "contributing_edge_ids": [
        "reference:520:531",
        "reference:520:608",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 28,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 520,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:520:531",
        "reference:520:608",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 521,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 521,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 521,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 521,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 521,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 521,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 522,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:522"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 522,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:522"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 522,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:522"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 522,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        531
      ],
      "contributing_edge_ids": [
        "reference:522:531"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 522,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        538,
        548,
        552,
        553,
        556,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        584,
        585,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:522:531",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 28,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 522,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:522:531",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 523,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        433,
        484,
        493,
        496,
        505,
        507,
        514,
        518
      ],
      "contributing_edge_ids": [
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 523,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        448,
        484,
        493,
        494,
        496,
        505,
        507,
        514,
        518
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:493:514",
        "reference:507:514",
        "reference:493:518",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 20,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 523,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433,
        448,
        484,
        493,
        494,
        496,
        505,
        507,
        514,
        518
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:493:514",
        "reference:507:514",
        "reference:493:518",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 523,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        531,
        535
      ],
      "contributing_edge_ids": [
        "reference:523:531",
        "reference:523:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 523,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        538,
        539,
        548,
        551,
        552,
        553,
        556,
        557,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        583,
        584,
        585,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 51,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 523,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 66,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:523:531",
        "reference:523:535",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 524,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 524,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 524,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 524,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 524,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 524,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 525,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 525,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 525,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 525,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 525,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 525,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 526,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        64,
        279,
        519
      ],
      "contributing_edge_ids": [
        "reference:64:526",
        "reference:279:526",
        "reference:519:526"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 526,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76,
        244,
        276,
        279,
        519
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:244:279",
        "reference:276:279",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 526,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        144,
        168,
        193,
        197,
        200,
        207,
        210,
        234,
        237,
        244,
        276,
        279,
        519
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:193:244",
        "reference:197:244",
        "reference:200:244",
        "reference:207:244",
        "reference:210:244",
        "reference:234:244",
        "reference:237:244",
        "reference:144:276",
        "reference:168:276",
        "reference:193:276",
        "reference:200:276",
        "reference:210:276",
        "reference:234:276",
        "reference:244:279",
        "reference:276:279",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 526,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 526,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 526,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        530,
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:526:530",
        "reference:526:566",
        "reference:526:570",
        "reference:526:573",
        "reference:526:605",
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 527,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 527,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 527,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 527,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        553
      ],
      "contributing_edge_ids": [
        "reference:527:553"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 527,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        553
      ],
      "contributing_edge_ids": [
        "reference:527:553"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 527,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        553
      ],
      "contributing_edge_ids": [
        "reference:527:553"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 528,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        509,
        513,
        516
      ],
      "contributing_edge_ids": [
        "reference:509:528",
        "reference:513:528",
        "reference:516:528"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 528,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        197,
        200,
        234,
        509,
        513,
        516
      ],
      "contributing_edge_ids": [
        "reference:197:513",
        "reference:200:513",
        "reference:234:513",
        "reference:509:528",
        "reference:513:528",
        "reference:516:528"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 528,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        187,
        189,
        193,
        197,
        200,
        209,
        210,
        234,
        509,
        513,
        516
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:197:513",
        "reference:200:513",
        "reference:234:513",
        "reference:509:528",
        "reference:513:528",
        "reference:516:528"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 528,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        581,
        585
      ],
      "contributing_edge_ids": [
        "reference:528:581",
        "reference:528:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 528,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:528:581",
        "reference:528:585",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 528,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:528:581",
        "reference:528:585",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 529,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 529,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 529,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 529,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        531
      ],
      "contributing_edge_ids": [
        "reference:529:531"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 529,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        538,
        548,
        552,
        553,
        556,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        584,
        585,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 28,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 529,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 530,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        64,
        488,
        511,
        519,
        526
      ],
      "contributing_edge_ids": [
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 530,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76,
        279,
        488,
        511,
        519,
        526
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 530,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        244,
        276,
        279,
        488,
        511,
        519,
        526
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:244:279",
        "reference:276:279",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 530,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        566,
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:530:566",
        "reference:530:570",
        "reference:530:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 530,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 530,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        566,
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:530:566",
        "reference:530:570",
        "reference:530:573",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 531,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        433,
        484,
        493,
        507,
        514,
        520,
        522,
        523,
        529
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 531,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        484,
        493,
        496,
        505,
        507,
        514,
        518,
        520,
        522,
        523,
        529
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 24,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 531,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 52,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433,
        448,
        484,
        493,
        494,
        496,
        505,
        507,
        514,
        518,
        520,
        522,
        523,
        529
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:493:514",
        "reference:507:514",
        "reference:493:518",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 531,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        533,
        534,
        535,
        538,
        548,
        552,
        553,
        556,
        565,
        566,
        568,
        569,
        570,
        573,
        574,
        576,
        578,
        582,
        584,
        585,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        622
      ],
      "contributing_edge_ids": [
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 531,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 253,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 531,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 69,
      "contributing_pr_ids": [
        275,
        533,
        534,
        535,
        536,
        538,
        539,
        547,
        548,
        551,
        552,
        553,
        556,
        557,
        559,
        562,
        564,
        565,
        566,
        567,
        568,
        569,
        570,
        571,
        573,
        574,
        575,
        576,
        578,
        579,
        581,
        582,
        583,
        584,
        585,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:531:533",
        "reference:531:534",
        "reference:531:535",
        "reference:531:538",
        "reference:531:548",
        "reference:531:552",
        "reference:531:553",
        "reference:531:556",
        "reference:531:565",
        "reference:531:566",
        "reference:531:568",
        "reference:531:569",
        "reference:531:570",
        "reference:531:573",
        "reference:531:574",
        "reference:531:576",
        "reference:531:578",
        "reference:531:582",
        "reference:531:584",
        "reference:531:585",
        "reference:531:588",
        "reference:531:591",
        "reference:531:592",
        "reference:531:596",
        "reference:531:600",
        "reference:531:601",
        "reference:531:603",
        "reference:531:622",
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:536:538",
        "reference:539:548",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:570:573",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:573:605",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:585:605",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 532,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 532,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 532,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 532,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 532,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 532,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 533,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        531
      ],
      "contributing_edge_ids": [
        "reference:531:533"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 533,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        433,
        484,
        493,
        507,
        514,
        520,
        522,
        523,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 533,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        484,
        493,
        496,
        505,
        507,
        514,
        518,
        520,
        522,
        523,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 533,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        535,
        538,
        548
      ],
      "contributing_edge_ids": [
        "reference:533:535",
        "reference:533:538",
        "reference:533:548"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 533,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        535,
        538,
        539,
        547,
        548,
        551,
        552,
        556,
        557,
        568,
        569,
        574,
        576,
        578,
        582,
        583,
        584,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 533,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        535,
        538,
        539,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:533:535",
        "reference:533:538",
        "reference:533:548",
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 534,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        531
      ],
      "contributing_edge_ids": [
        "reference:531:534"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 534,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        433,
        484,
        493,
        507,
        514,
        520,
        522,
        523,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:534"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 534,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        484,
        493,
        496,
        505,
        507,
        514,
        518,
        520,
        522,
        523,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:534"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 534,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        536,
        538,
        548,
        551,
        552,
        557
      ],
      "contributing_edge_ids": [
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 534,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        536,
        538,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:536:538",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 39,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 534,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 49,
      "contributing_pr_ids": [
        275,
        536,
        538,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:534:536",
        "reference:534:538",
        "reference:534:548",
        "reference:534:551",
        "reference:534:552",
        "reference:534:557",
        "reference:536:538",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 535,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        433,
        484,
        510,
        523,
        531,
        533
      ],
      "contributing_edge_ids": [
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 535,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        463,
        484,
        493,
        496,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:463:510",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 32,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 535,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        16,
        18,
        20,
        21,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        234,
        266,
        315,
        325,
        352,
        370,
        376,
        386,
        389,
        425,
        426,
        433,
        448,
        463,
        484,
        493,
        494,
        496,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:10:24",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:376:426",
        "reference:389:426",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:448:496",
        "reference:484:496",
        "reference:493:496",
        "reference:494:496",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:518",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 19,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 535,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        538,
        539,
        548,
        551,
        552,
        557,
        568,
        569,
        574,
        576,
        578,
        582,
        583,
        584,
        588,
        590,
        591,
        592,
        596,
        597,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 535,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        538,
        539,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 244,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 535,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        275,
        538,
        539,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        590,
        591,
        592,
        593,
        594,
        596,
        597,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:535:538",
        "reference:535:539",
        "reference:535:548",
        "reference:535:551",
        "reference:535:552",
        "reference:535:557",
        "reference:535:568",
        "reference:535:569",
        "reference:535:574",
        "reference:535:576",
        "reference:535:578",
        "reference:535:582",
        "reference:535:583",
        "reference:535:584",
        "reference:535:588",
        "reference:535:590",
        "reference:535:591",
        "reference:535:592",
        "reference:535:596",
        "reference:535:597",
        "reference:535:600",
        "reference:535:601",
        "reference:535:603",
        "reference:539:548",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:590:597",
        "reference:590:612",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:597:612",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 536,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        534
      ],
      "contributing_edge_ids": [
        "reference:534:536"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 536,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        531,
        534
      ],
      "contributing_edge_ids": [
        "reference:531:534",
        "reference:534:536"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 536,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        433,
        484,
        493,
        507,
        514,
        520,
        522,
        523,
        529,
        531,
        534
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:534",
        "reference:534:536"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 536,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        538
      ],
      "contributing_edge_ids": [
        "reference:536:538"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 536,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        538
      ],
      "contributing_edge_ids": [
        "reference:536:538"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 536,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        538
      ],
      "contributing_edge_ids": [
        "reference:536:538"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 537,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 537,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 537,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 537,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 537,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 537,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 538,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        531,
        533,
        534,
        535,
        536
      ],
      "contributing_edge_ids": [
        "reference:531:538",
        "reference:533:538",
        "reference:534:538",
        "reference:535:538",
        "reference:536:538"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 538,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        433,
        484,
        493,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        536
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:534:536",
        "reference:531:538",
        "reference:533:538",
        "reference:534:538",
        "reference:535:538",
        "reference:536:538"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 538,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        463,
        484,
        493,
        496,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        536
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:534:536",
        "reference:531:538",
        "reference:533:538",
        "reference:534:538",
        "reference:535:538",
        "reference:536:538"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 538,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 538,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 538,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 539,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        510,
        535
      ],
      "contributing_edge_ids": [
        "reference:510:539",
        "reference:535:539"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 539,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        433,
        463,
        484,
        510,
        523,
        531,
        533,
        535
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 539,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        463,
        484,
        493,
        496,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        535
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:463:510",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 539,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        548
      ],
      "contributing_edge_ids": [
        "reference:539:548"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 539,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        547,
        548,
        551,
        556,
        557
      ],
      "contributing_edge_ids": [
        "reference:539:548",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 4,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 539,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        547,
        548,
        551,
        552,
        556,
        557,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:539:548",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 540,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        434,
        442,
        448,
        472,
        493
      ],
      "contributing_edge_ids": [
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 540,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        434,
        442,
        443,
        448,
        472,
        493
      ],
      "contributing_edge_ids": [
        "reference:443:434",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 540,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        434,
        442,
        443,
        448,
        472,
        493
      ],
      "contributing_edge_ids": [
        "reference:443:434",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 540,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        548,
        552
      ],
      "contributing_edge_ids": [
        "reference:540:548",
        "reference:540:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 540,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:540:548",
        "reference:540:552",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 540,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        275,
        547,
        548,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:540:548",
        "reference:540:552",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 541,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 541,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 541,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 541,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        551,
        552,
        556,
        557
      ],
      "contributing_edge_ids": [
        "reference:541:551",
        "reference:541:552",
        "reference:541:556",
        "reference:541:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 541,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:541:551",
        "reference:541:552",
        "reference:541:556",
        "reference:541:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 34,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 541,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        275,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:541:551",
        "reference:541:552",
        "reference:541:556",
        "reference:541:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 542,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 542,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 542,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 542,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        546,
        552
      ],
      "contributing_edge_ids": [
        "reference:542:546",
        "reference:542:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 542,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        546,
        552,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:542:546",
        "reference:542:552",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 542,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        275,
        546,
        552,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:542:546",
        "reference:542:552",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 543,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        510
      ],
      "contributing_edge_ids": [
        "reference:510:543"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 543,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        463,
        510
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:510:543"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 543,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        463,
        510
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:510:543"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 543,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        547,
        551,
        552,
        556,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        612,
        613,
        616,
        618,
        624,
        627,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:543:547",
        "reference:543:551",
        "reference:543:552",
        "reference:543:556",
        "reference:543:559",
        "reference:543:561",
        "reference:543:562",
        "reference:543:564",
        "reference:543:567",
        "reference:543:568",
        "reference:543:569",
        "reference:543:571",
        "reference:543:574",
        "reference:543:575",
        "reference:543:576",
        "reference:543:578",
        "reference:543:579",
        "reference:543:582",
        "reference:543:583",
        "reference:543:584",
        "reference:543:588",
        "reference:543:591",
        "reference:543:592",
        "reference:543:596",
        "reference:543:600",
        "reference:543:601",
        "reference:543:603",
        "reference:543:612",
        "reference:543:613",
        "reference:543:616",
        "reference:543:618",
        "reference:543:624",
        "reference:543:627",
        "reference:543:632",
        "reference:543:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 543,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 53,
      "contributing_pr_ids": [
        275,
        547,
        551,
        552,
        556,
        557,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        618,
        622,
        623,
        624,
        625,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:543:547",
        "reference:543:551",
        "reference:543:552",
        "reference:543:556",
        "reference:543:559",
        "reference:543:561",
        "reference:543:562",
        "reference:543:564",
        "reference:543:567",
        "reference:543:568",
        "reference:543:569",
        "reference:543:571",
        "reference:543:574",
        "reference:543:575",
        "reference:543:576",
        "reference:543:578",
        "reference:543:579",
        "reference:543:582",
        "reference:543:583",
        "reference:543:584",
        "reference:543:588",
        "reference:543:591",
        "reference:543:592",
        "reference:543:596",
        "reference:543:600",
        "reference:543:601",
        "reference:543:603",
        "reference:543:612",
        "reference:543:613",
        "reference:543:616",
        "reference:543:618",
        "reference:543:624",
        "reference:543:627",
        "reference:543:632",
        "reference:543:633",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:561:562",
        "reference:561:564",
        "reference:561:567",
        "reference:561:568",
        "reference:561:569",
        "reference:561:574",
        "reference:561:576",
        "reference:561:578",
        "reference:561:582",
        "reference:561:584",
        "reference:561:588",
        "reference:561:591",
        "reference:561:592",
        "reference:561:596",
        "reference:561:600",
        "reference:561:601",
        "reference:561:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:618:629",
        "reference:624:629",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 392,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 543,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        547,
        551,
        552,
        556,
        557,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        612,
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:543:547",
        "reference:543:551",
        "reference:543:552",
        "reference:543:556",
        "reference:543:559",
        "reference:543:561",
        "reference:543:562",
        "reference:543:564",
        "reference:543:567",
        "reference:543:568",
        "reference:543:569",
        "reference:543:571",
        "reference:543:574",
        "reference:543:575",
        "reference:543:576",
        "reference:543:578",
        "reference:543:579",
        "reference:543:582",
        "reference:543:583",
        "reference:543:584",
        "reference:543:588",
        "reference:543:591",
        "reference:543:592",
        "reference:543:596",
        "reference:543:600",
        "reference:543:601",
        "reference:543:603",
        "reference:543:612",
        "reference:543:613",
        "reference:543:616",
        "reference:543:618",
        "reference:543:624",
        "reference:543:627",
        "reference:543:632",
        "reference:543:633",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:561:562",
        "reference:561:564",
        "reference:561:567",
        "reference:561:568",
        "reference:561:569",
        "reference:561:574",
        "reference:561:576",
        "reference:561:578",
        "reference:561:582",
        "reference:561:584",
        "reference:561:588",
        "reference:561:591",
        "reference:561:592",
        "reference:561:596",
        "reference:561:600",
        "reference:561:601",
        "reference:561:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:618:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 544,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 544,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 544,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 544,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        547
      ],
      "contributing_edge_ids": [
        "reference:544:547"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 544,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        547,
        551,
        552,
        556
      ],
      "contributing_edge_ids": [
        "reference:544:547",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 3,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 544,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        547,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:544:547",
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 545,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:545"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 545,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:545"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 545,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        493
      ],
      "contributing_edge_ids": [
        "reference:493:545"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 545,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        552
      ],
      "contributing_edge_ids": [
        "reference:545:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 545,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        552,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:545:552",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 17,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 545,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        275,
        552,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:545:552",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 546,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        542
      ],
      "contributing_edge_ids": [
        "reference:542:546"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 546,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        542
      ],
      "contributing_edge_ids": [
        "reference:542:546"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 546,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        542
      ],
      "contributing_edge_ids": [
        "reference:542:546"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 546,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 546,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 546,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 547,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        543,
        544,
        548
      ],
      "contributing_edge_ids": [
        "reference:543:547",
        "reference:544:547",
        "reference:548:547"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 547,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        386,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        531,
        533,
        534,
        535,
        539,
        540,
        543,
        544,
        548
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 547,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        386,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        543,
        544,
        548
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 547,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        551,
        552,
        556
      ],
      "contributing_edge_ids": [
        "reference:547:551",
        "reference:547:552",
        "reference:547:556"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 547,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 34,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 547,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        275,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 548,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        386,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        531,
        533,
        534,
        535,
        539,
        540
      ],
      "contributing_edge_ids": [
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 548,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        386,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 548,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:443:434",
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 548,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        547,
        551,
        556,
        557
      ],
      "contributing_edge_ids": [
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 548,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        547,
        551,
        552,
        556,
        557,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 20,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 548,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        547,
        551,
        552,
        556,
        557,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:547:551",
        "reference:547:552",
        "reference:547:556",
        "reference:548:547",
        "reference:548:551",
        "reference:548:556",
        "reference:548:557",
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 549,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 549,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 549,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 549,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        556
      ],
      "contributing_edge_ids": [
        "reference:549:556"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 549,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        556
      ],
      "contributing_edge_ids": [
        "reference:549:556"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 549,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        556
      ],
      "contributing_edge_ids": [
        "reference:549:556"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 550,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        361
      ],
      "contributing_edge_ids": [
        "reference:361:550"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 550,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        318,
        361
      ],
      "contributing_edge_ids": [
        "reference:318:361",
        "reference:361:550"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 550,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        318,
        361
      ],
      "contributing_edge_ids": [
        "reference:318:361",
        "reference:361:550"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 550,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        556,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:550:556",
        "reference:550:568",
        "reference:550:569",
        "reference:550:574",
        "reference:550:576",
        "reference:550:578",
        "reference:550:582",
        "reference:550:584",
        "reference:550:588",
        "reference:550:591",
        "reference:550:592",
        "reference:550:596",
        "reference:550:600",
        "reference:550:601",
        "reference:550:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 550,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:550:556",
        "reference:550:568",
        "reference:550:569",
        "reference:550:574",
        "reference:550:576",
        "reference:550:578",
        "reference:550:582",
        "reference:550:584",
        "reference:550:588",
        "reference:550:591",
        "reference:550:592",
        "reference:550:596",
        "reference:550:600",
        "reference:550:601",
        "reference:550:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 183,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 550,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        556,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:550:556",
        "reference:550:568",
        "reference:550:569",
        "reference:550:574",
        "reference:550:576",
        "reference:550:578",
        "reference:550:582",
        "reference:550:584",
        "reference:550:588",
        "reference:550:591",
        "reference:550:592",
        "reference:550:596",
        "reference:550:600",
        "reference:550:601",
        "reference:550:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 551,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        484,
        534,
        535,
        541,
        543,
        547,
        548
      ],
      "contributing_edge_ids": [
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 551,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        386,
        433,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        523,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        543,
        544,
        547,
        548
      ],
      "contributing_edge_ids": [
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 25,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 551,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        543,
        544,
        547,
        548
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 551,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        557,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 551,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        557,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 215,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 551,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 46,
      "contributing_pr_ids": [
        557,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:551:557",
        "reference:551:562",
        "reference:551:564",
        "reference:551:568",
        "reference:551:569",
        "reference:551:574",
        "reference:551:576",
        "reference:551:578",
        "reference:551:582",
        "reference:551:584",
        "reference:551:588",
        "reference:551:591",
        "reference:551:592",
        "reference:551:596",
        "reference:551:600",
        "reference:551:601",
        "reference:551:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 552,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        386,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        531,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547
      ],
      "contributing_edge_ids": [
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 552,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        386,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 29,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 552,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:443:434",
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 552,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        559,
        562,
        564,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 552,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        275,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 233,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 552,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 52,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        556,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:552:559",
        "reference:552:562",
        "reference:552:564",
        "reference:552:568",
        "reference:552:569",
        "reference:552:574",
        "reference:552:576",
        "reference:552:578",
        "reference:552:582",
        "reference:552:584",
        "reference:552:588",
        "reference:552:591",
        "reference:552:592",
        "reference:552:596",
        "reference:552:600",
        "reference:552:601",
        "reference:552:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 553,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        493,
        527,
        531
      ],
      "contributing_edge_ids": [
        "reference:493:553",
        "reference:527:553",
        "reference:531:553"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 553,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        433,
        484,
        493,
        507,
        514,
        520,
        522,
        523,
        527,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:493:553",
        "reference:527:553",
        "reference:531:553"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 553,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        484,
        493,
        496,
        505,
        507,
        514,
        518,
        520,
        522,
        523,
        527,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:493:553",
        "reference:527:553",
        "reference:531:553"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 553,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 553,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 553,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 554,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 554,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 554,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 554,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        560
      ],
      "contributing_edge_ids": [
        "reference:554:560"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 554,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        560
      ],
      "contributing_edge_ids": [
        "reference:554:560"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 554,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        560
      ],
      "contributing_edge_ids": [
        "reference:554:560"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 555,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 555,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 555,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 555,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 555,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 555,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 556,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        275,
        531,
        541,
        543,
        547,
        548,
        549,
        550
      ],
      "contributing_edge_ids": [
        "reference:275:556",
        "reference:531:556",
        "reference:541:556",
        "reference:543:556",
        "reference:547:556",
        "reference:548:556",
        "reference:549:556",
        "reference:550:556"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 556,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        543,
        544,
        547,
        548,
        549,
        550,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:510:543",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:275:556",
        "reference:531:556",
        "reference:541:556",
        "reference:543:556",
        "reference:547:556",
        "reference:548:556",
        "reference:549:556",
        "reference:550:556"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 34,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 556,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        543,
        544,
        547,
        548,
        549,
        550,
        552,
        558,
        559
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:275:556",
        "reference:531:556",
        "reference:541:556",
        "reference:543:556",
        "reference:547:556",
        "reference:548:556",
        "reference:549:556",
        "reference:550:556",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 556,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 556,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 556,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 557,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        484,
        534,
        535,
        541,
        548,
        551
      ],
      "contributing_edge_ids": [
        "reference:484:557",
        "reference:534:557",
        "reference:535:557",
        "reference:541:557",
        "reference:548:557",
        "reference:551:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 557,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        386,
        433,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        523,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        543,
        547,
        548,
        551
      ],
      "contributing_edge_ids": [
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:484:557",
        "reference:534:557",
        "reference:535:557",
        "reference:541:557",
        "reference:548:557",
        "reference:551:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 28,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 557,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 46,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        543,
        544,
        547,
        548,
        551
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:539",
        "reference:535:539",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:484:557",
        "reference:534:557",
        "reference:535:557",
        "reference:541:557",
        "reference:548:557",
        "reference:551:557"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 557,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 557,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 557,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 558,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 558,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 558,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 558,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        559,
        562,
        564,
        567,
        568,
        574,
        576,
        578,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:558:559",
        "reference:558:562",
        "reference:558:564",
        "reference:558:567",
        "reference:558:568",
        "reference:558:574",
        "reference:558:576",
        "reference:558:578",
        "reference:558:582",
        "reference:558:583",
        "reference:558:584",
        "reference:558:586",
        "reference:558:587",
        "reference:558:588",
        "reference:558:591",
        "reference:558:592",
        "reference:558:596",
        "reference:558:600",
        "reference:558:601",
        "reference:558:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 558,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        275,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:558:559",
        "reference:558:562",
        "reference:558:564",
        "reference:558:567",
        "reference:558:568",
        "reference:558:574",
        "reference:558:576",
        "reference:558:578",
        "reference:558:582",
        "reference:558:583",
        "reference:558:584",
        "reference:558:586",
        "reference:558:587",
        "reference:558:588",
        "reference:558:591",
        "reference:558:592",
        "reference:558:596",
        "reference:558:600",
        "reference:558:601",
        "reference:558:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 250,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 558,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 52,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        556,
        559,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:558:559",
        "reference:558:562",
        "reference:558:564",
        "reference:558:567",
        "reference:558:568",
        "reference:558:574",
        "reference:558:576",
        "reference:558:578",
        "reference:558:582",
        "reference:558:583",
        "reference:558:584",
        "reference:558:586",
        "reference:558:587",
        "reference:558:588",
        "reference:558:591",
        "reference:558:592",
        "reference:558:596",
        "reference:558:600",
        "reference:558:601",
        "reference:558:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 559,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        543,
        552,
        558
      ],
      "contributing_edge_ids": [
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 559,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        386,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        531,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        552,
        558
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 559,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        386,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        552,
        558
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 559,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        275,
        562,
        564,
        567,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 559,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        556,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 11,
      "round_2_sum_neighbor_degree": 250,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 559,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        275,
        302,
        305,
        307,
        308,
        556,
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:275:302",
        "reference:275:305",
        "reference:275:307",
        "reference:275:308",
        "reference:275:556",
        "reference:275:568",
        "reference:275:574",
        "reference:275:576",
        "reference:275:578",
        "reference:275:582",
        "reference:275:584",
        "reference:275:588",
        "reference:275:591",
        "reference:275:592",
        "reference:275:596",
        "reference:275:600",
        "reference:275:601",
        "reference:275:603",
        "reference:305:302",
        "reference:305:307",
        "reference:305:308",
        "reference:307:308",
        "reference:559:275",
        "reference:559:562",
        "reference:559:564",
        "reference:559:567",
        "reference:559:568",
        "reference:559:569",
        "reference:559:574",
        "reference:559:576",
        "reference:559:578",
        "reference:559:582",
        "reference:559:584",
        "reference:559:588",
        "reference:559:591",
        "reference:559:592",
        "reference:559:596",
        "reference:559:600",
        "reference:559:601",
        "reference:559:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 560,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        554
      ],
      "contributing_edge_ids": [
        "reference:554:560"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 560,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        554
      ],
      "contributing_edge_ids": [
        "reference:554:560"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 560,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        554
      ],
      "contributing_edge_ids": [
        "reference:554:560"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 560,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 560,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 560,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 561,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        543
      ],
      "contributing_edge_ids": [
        "reference:543:561"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 561,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        510,
        543
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:543:561"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 561,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        463,
        510,
        543
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:510:543",
        "reference:543:561"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 561,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        562,
        564,
        567,
        568,
        569,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:561:562",
        "reference:561:564",
        "reference:561:567",
        "reference:561:568",
        "reference:561:569",
        "reference:561:574",
        "reference:561:576",
        "reference:561:578",
        "reference:561:582",
        "reference:561:584",
        "reference:561:588",
        "reference:561:591",
        "reference:561:592",
        "reference:561:596",
        "reference:561:600",
        "reference:561:601",
        "reference:561:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 561,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:561:562",
        "reference:561:564",
        "reference:561:567",
        "reference:561:568",
        "reference:561:569",
        "reference:561:574",
        "reference:561:576",
        "reference:561:578",
        "reference:561:582",
        "reference:561:584",
        "reference:561:588",
        "reference:561:591",
        "reference:561:592",
        "reference:561:596",
        "reference:561:600",
        "reference:561:601",
        "reference:561:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 232,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 561,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 45,
      "contributing_pr_ids": [
        562,
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:561:562",
        "reference:561:564",
        "reference:561:567",
        "reference:561:568",
        "reference:561:569",
        "reference:561:574",
        "reference:561:576",
        "reference:561:578",
        "reference:561:582",
        "reference:561:584",
        "reference:561:588",
        "reference:561:591",
        "reference:561:592",
        "reference:561:596",
        "reference:561:600",
        "reference:561:601",
        "reference:561:603",
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 562,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        543,
        551,
        552,
        558,
        559,
        561
      ],
      "contributing_edge_ids": [
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 562,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        386,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        531,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        551,
        552,
        558,
        559,
        561
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 29,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 562,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        386,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        551,
        552,
        558,
        559,
        561
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 562,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        564,
        567,
        568,
        574,
        576,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 562,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 191,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 562,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 44,
      "contributing_pr_ids": [
        564,
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:562:564",
        "reference:562:567",
        "reference:562:568",
        "reference:562:574",
        "reference:562:576",
        "reference:562:578",
        "reference:562:582",
        "reference:562:584",
        "reference:562:588",
        "reference:562:591",
        "reference:562:592",
        "reference:562:596",
        "reference:562:600",
        "reference:562:601",
        "reference:562:603",
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 563,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 563,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 563,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 563,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        569
      ],
      "contributing_edge_ids": [
        "reference:563:569"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 563,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        584,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:563:569",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 26,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 563,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:563:569",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 564,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        543,
        551,
        552,
        558,
        559,
        561,
        562
      ],
      "contributing_edge_ids": [
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 564,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        386,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        531,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        551,
        552,
        558,
        559,
        561,
        562
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 35,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 564,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 38,
      "contributing_pr_ids": [
        386,
        433,
        434,
        442,
        443,
        444,
        448,
        463,
        472,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        551,
        552,
        558,
        559,
        561,
        562
      ],
      "contributing_edge_ids": [
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 564,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        567,
        568,
        569,
        571,
        574,
        576,
        578,
        582,
        584,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 564,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 228,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 564,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 43,
      "contributing_pr_ids": [
        567,
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:564:567",
        "reference:564:568",
        "reference:564:569",
        "reference:564:571",
        "reference:564:574",
        "reference:564:576",
        "reference:564:578",
        "reference:564:582",
        "reference:564:584",
        "reference:564:587",
        "reference:564:588",
        "reference:564:591",
        "reference:564:592",
        "reference:564:596",
        "reference:564:600",
        "reference:564:601",
        "reference:564:603",
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 565,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        488,
        511,
        531
      ],
      "contributing_edge_ids": [
        "reference:488:565",
        "reference:511:565",
        "reference:531:565"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 565,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        64,
        433,
        484,
        488,
        493,
        507,
        511,
        514,
        520,
        522,
        523,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:64:511",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 10,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 565,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        64,
        68,
        69,
        71,
        73,
        76,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        484,
        488,
        493,
        496,
        505,
        507,
        511,
        514,
        518,
        520,
        522,
        523,
        529,
        531
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:64:511",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 565,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        566,
        570,
        573,
        581,
        585
      ],
      "contributing_edge_ids": [
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 565,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 565,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        566,
        570,
        573,
        581,
        585,
        605
      ],
      "contributing_edge_ids": [
        "reference:565:566",
        "reference:565:570",
        "reference:565:573",
        "reference:565:581",
        "reference:565:585",
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605",
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 566,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        64,
        488,
        493,
        511,
        519,
        526,
        530,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 566,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76,
        279,
        433,
        484,
        488,
        493,
        507,
        511,
        514,
        519,
        520,
        522,
        523,
        526,
        529,
        530,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 566,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 52,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        104,
        115,
        130,
        144,
        244,
        276,
        279,
        370,
        386,
        425,
        426,
        433,
        484,
        488,
        493,
        496,
        505,
        507,
        511,
        514,
        518,
        519,
        520,
        522,
        523,
        526,
        529,
        530,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:244:279",
        "reference:276:279",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:64:511",
        "reference:493:514",
        "reference:507:514",
        "reference:64:519",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 566,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        570,
        573
      ],
      "contributing_edge_ids": [
        "reference:566:570",
        "reference:566:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 566,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 566,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        570,
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:566:570",
        "reference:566:573",
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 567,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        543,
        558,
        559,
        561,
        562,
        564
      ],
      "contributing_edge_ids": [
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 567,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        510,
        543,
        551,
        552,
        558,
        559,
        561,
        562,
        564
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 18,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 567,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        386,
        442,
        444,
        463,
        484,
        493,
        503,
        510,
        531,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        551,
        552,
        558,
        559,
        561,
        562,
        564
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:510:543",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 567,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        568,
        569,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 567,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 237,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 567,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        568,
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:567:568",
        "reference:567:569",
        "reference:567:574",
        "reference:567:575",
        "reference:567:576",
        "reference:567:578",
        "reference:567:579",
        "reference:567:582",
        "reference:567:583",
        "reference:567:584",
        "reference:567:588",
        "reference:567:591",
        "reference:567:592",
        "reference:567:596",
        "reference:567:600",
        "reference:567:601",
        "reference:567:603",
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 568,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 568,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 72,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 568,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 568,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        584,
        587,
        588,
        591,
        592,
        594,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 568,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 265,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 568,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 41,
      "contributing_pr_ids": [
        569,
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:568:569",
        "reference:568:571",
        "reference:568:574",
        "reference:568:575",
        "reference:568:576",
        "reference:568:578",
        "reference:568:579",
        "reference:568:582",
        "reference:568:584",
        "reference:568:587",
        "reference:568:588",
        "reference:568:591",
        "reference:568:592",
        "reference:568:594",
        "reference:568:596",
        "reference:568:600",
        "reference:568:601",
        "reference:568:603",
        "reference:568:607",
        "reference:568:608",
        "reference:568:609",
        "reference:568:613",
        "reference:568:614",
        "reference:568:615",
        "reference:568:616",
        "reference:568:617",
        "reference:568:622",
        "reference:568:623",
        "reference:568:625",
        "reference:568:629",
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 569,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        425,
        442,
        484,
        505,
        531,
        535,
        543,
        550,
        551,
        552,
        559,
        561,
        563,
        564,
        567,
        568
      ],
      "contributing_edge_ids": [
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 569,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 42,
      "contributing_pr_ids": [
        275,
        361,
        370,
        386,
        425,
        433,
        442,
        444,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568
      ],
      "contributing_edge_ids": [
        "reference:370:425",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 75,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 569,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 69,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        234,
        266,
        275,
        315,
        318,
        325,
        352,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:234:370",
        "reference:266:370",
        "reference:315:370",
        "reference:325:370",
        "reference:352:370",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 569,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        584,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 569,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 239,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 569,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 40,
      "contributing_pr_ids": [
        571,
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:569:571",
        "reference:569:574",
        "reference:569:575",
        "reference:569:576",
        "reference:569:578",
        "reference:569:579",
        "reference:569:582",
        "reference:569:584",
        "reference:569:587",
        "reference:569:588",
        "reference:569:591",
        "reference:569:592",
        "reference:569:596",
        "reference:569:600",
        "reference:569:601",
        "reference:569:603",
        "reference:569:607",
        "reference:569:608",
        "reference:569:609",
        "reference:569:614",
        "reference:569:615",
        "reference:569:617",
        "reference:569:622",
        "reference:569:623",
        "reference:569:625",
        "reference:569:629",
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 570,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        64,
        488,
        511,
        519,
        526,
        530,
        531,
        565,
        566
      ],
      "contributing_edge_ids": [
        "reference:64:570",
        "reference:488:570",
        "reference:511:570",
        "reference:519:570",
        "reference:526:570",
        "reference:530:570",
        "reference:531:570",
        "reference:565:570",
        "reference:566:570"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 570,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76,
        279,
        433,
        484,
        488,
        493,
        507,
        511,
        514,
        519,
        520,
        522,
        523,
        526,
        529,
        530,
        531,
        565,
        566
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566",
        "reference:64:570",
        "reference:488:570",
        "reference:511:570",
        "reference:519:570",
        "reference:526:570",
        "reference:530:570",
        "reference:531:570",
        "reference:565:570",
        "reference:566:570"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 36,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 570,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 53,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        104,
        115,
        130,
        144,
        244,
        276,
        279,
        370,
        386,
        425,
        426,
        433,
        484,
        488,
        493,
        496,
        505,
        507,
        511,
        514,
        518,
        519,
        520,
        522,
        523,
        526,
        529,
        530,
        531,
        565,
        566
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:244:279",
        "reference:276:279",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:64:511",
        "reference:493:514",
        "reference:507:514",
        "reference:64:519",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566",
        "reference:64:570",
        "reference:488:570",
        "reference:511:570",
        "reference:519:570",
        "reference:526:570",
        "reference:530:570",
        "reference:531:570",
        "reference:565:570",
        "reference:566:570"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 570,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        573
      ],
      "contributing_edge_ids": [
        "reference:570:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 570,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 570,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        573,
        605
      ],
      "contributing_edge_ids": [
        "reference:570:573",
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 571,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        543,
        564,
        568,
        569
      ],
      "contributing_edge_ids": [
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 571,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        510,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 40,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 571,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 46,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 571,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        613,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 571,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": 237,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 571,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        574,
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        613,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:571:574",
        "reference:571:575",
        "reference:571:576",
        "reference:571:578",
        "reference:571:579",
        "reference:571:582",
        "reference:571:583",
        "reference:571:584",
        "reference:571:586",
        "reference:571:587",
        "reference:571:588",
        "reference:571:591",
        "reference:571:592",
        "reference:571:596",
        "reference:571:600",
        "reference:571:601",
        "reference:571:603",
        "reference:571:607",
        "reference:571:608",
        "reference:571:609",
        "reference:571:613",
        "reference:571:614",
        "reference:571:615",
        "reference:571:617",
        "reference:571:622",
        "reference:571:623",
        "reference:571:625",
        "reference:571:629",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 572,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 572,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 572,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 572,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:572:574",
        "reference:572:575",
        "reference:572:576",
        "reference:572:577",
        "reference:572:578",
        "reference:572:579",
        "reference:572:582",
        "reference:572:583",
        "reference:572:584",
        "reference:572:586",
        "reference:572:588",
        "reference:572:591",
        "reference:572:592",
        "reference:572:596",
        "reference:572:600",
        "reference:572:601",
        "reference:572:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 572,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:572:574",
        "reference:572:575",
        "reference:572:576",
        "reference:572:577",
        "reference:572:578",
        "reference:572:579",
        "reference:572:582",
        "reference:572:583",
        "reference:572:584",
        "reference:572:586",
        "reference:572:588",
        "reference:572:591",
        "reference:572:592",
        "reference:572:596",
        "reference:572:600",
        "reference:572:601",
        "reference:572:603",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:577:576",
        "reference:577:579",
        "reference:577:582",
        "reference:577:584",
        "reference:577:588",
        "reference:577:591",
        "reference:577:592",
        "reference:577:596",
        "reference:577:600",
        "reference:577:601",
        "reference:577:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 199,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 572,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 39,
      "contributing_pr_ids": [
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:572:574",
        "reference:572:575",
        "reference:572:576",
        "reference:572:577",
        "reference:572:578",
        "reference:572:579",
        "reference:572:582",
        "reference:572:583",
        "reference:572:584",
        "reference:572:586",
        "reference:572:588",
        "reference:572:591",
        "reference:572:592",
        "reference:572:596",
        "reference:572:600",
        "reference:572:601",
        "reference:572:603",
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:577:576",
        "reference:577:579",
        "reference:577:582",
        "reference:577:584",
        "reference:577:588",
        "reference:577:591",
        "reference:577:592",
        "reference:577:596",
        "reference:577:600",
        "reference:577:601",
        "reference:577:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 573,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        64,
        488,
        511,
        519,
        526,
        530,
        531,
        565,
        566,
        570
      ],
      "contributing_edge_ids": [
        "reference:64:573",
        "reference:488:573",
        "reference:511:573",
        "reference:519:573",
        "reference:526:573",
        "reference:530:573",
        "reference:531:573",
        "reference:565:573",
        "reference:566:573",
        "reference:570:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 573,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        64,
        68,
        69,
        71,
        73,
        76,
        279,
        433,
        484,
        488,
        493,
        507,
        511,
        514,
        519,
        520,
        522,
        523,
        526,
        529,
        530,
        531,
        565,
        566,
        570
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:64:511",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566",
        "reference:64:570",
        "reference:488:570",
        "reference:511:570",
        "reference:519:570",
        "reference:526:570",
        "reference:530:570",
        "reference:531:570",
        "reference:565:570",
        "reference:566:570",
        "reference:64:573",
        "reference:488:573",
        "reference:511:573",
        "reference:519:573",
        "reference:526:573",
        "reference:530:573",
        "reference:531:573",
        "reference:565:573",
        "reference:566:573",
        "reference:570:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 45,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 573,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        57,
        59,
        60,
        61,
        62,
        63,
        64,
        65,
        67,
        68,
        69,
        70,
        71,
        73,
        74,
        75,
        76,
        104,
        115,
        130,
        144,
        244,
        276,
        279,
        370,
        386,
        425,
        426,
        433,
        484,
        488,
        493,
        496,
        505,
        507,
        511,
        514,
        518,
        519,
        520,
        522,
        523,
        526,
        529,
        530,
        531,
        565,
        566,
        570
      ],
      "contributing_edge_ids": [
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:57:68",
        "reference:60:68",
        "reference:61:68",
        "reference:62:68",
        "reference:67:68",
        "reference:60:69",
        "reference:57:71",
        "reference:59:71",
        "reference:60:71",
        "reference:62:71",
        "reference:63:71",
        "reference:65:71",
        "reference:67:71",
        "reference:68:71",
        "reference:71:73",
        "reference:57:76",
        "reference:60:76",
        "reference:62:76",
        "reference:65:76",
        "reference:68:76",
        "reference:70:76",
        "reference:71:76",
        "reference:74:76",
        "reference:75:76",
        "reference:244:279",
        "reference:276:279",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:64:511",
        "reference:493:514",
        "reference:507:514",
        "reference:64:519",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566",
        "reference:64:570",
        "reference:488:570",
        "reference:511:570",
        "reference:519:570",
        "reference:526:570",
        "reference:530:570",
        "reference:531:570",
        "reference:565:570",
        "reference:566:570",
        "reference:64:573",
        "reference:488:573",
        "reference:511:573",
        "reference:519:573",
        "reference:526:573",
        "reference:530:573",
        "reference:531:573",
        "reference:565:573",
        "reference:566:573",
        "reference:570:573"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 573,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        605
      ],
      "contributing_edge_ids": [
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 573,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        605
      ],
      "contributing_edge_ids": [
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 573,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        605
      ],
      "contributing_edge_ids": [
        "reference:573:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 574,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572
      ],
      "contributing_edge_ids": [
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 574,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 108,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 574,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 69,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 574,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        575,
        578,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 574,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 128,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 574,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        575,
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:574:575",
        "reference:574:578",
        "reference:574:582",
        "reference:574:584",
        "reference:574:588",
        "reference:574:591",
        "reference:574:592",
        "reference:574:596",
        "reference:574:600",
        "reference:574:601",
        "reference:574:603",
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 575,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        543,
        567,
        568,
        569,
        571,
        572,
        574
      ],
      "contributing_edge_ids": [
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 575,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        510,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 63,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 575,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 49,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 575,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 575,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 201,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 575,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:575:576",
        "reference:575:578",
        "reference:575:579",
        "reference:575:582",
        "reference:575:583",
        "reference:575:584",
        "reference:575:586",
        "reference:575:587",
        "reference:575:588",
        "reference:575:591",
        "reference:575:592",
        "reference:575:596",
        "reference:575:600",
        "reference:575:601",
        "reference:575:603",
        "reference:575:607",
        "reference:575:608",
        "reference:575:609",
        "reference:575:614",
        "reference:575:615",
        "reference:575:617",
        "reference:575:622",
        "reference:575:623",
        "reference:575:625",
        "reference:575:629",
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 576,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        575,
        577
      ],
      "contributing_edge_ids": [
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 576,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        577
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 116,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 576,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 72,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        577
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 576,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        578,
        579,
        582,
        583,
        584,
        587,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 576,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 132,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 576,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 577,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        572
      ],
      "contributing_edge_ids": [
        "reference:572:577"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 577,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        572
      ],
      "contributing_edge_ids": [
        "reference:572:577"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 577,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        572
      ],
      "contributing_edge_ids": [
        "reference:572:577"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 577,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        576,
        579,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:577:576",
        "reference:577:579",
        "reference:577:582",
        "reference:577:584",
        "reference:577:588",
        "reference:577:591",
        "reference:577:592",
        "reference:577:596",
        "reference:577:600",
        "reference:577:601",
        "reference:577:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 577,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:577:576",
        "reference:577:579",
        "reference:577:582",
        "reference:577:584",
        "reference:577:588",
        "reference:577:591",
        "reference:577:592",
        "reference:577:596",
        "reference:577:600",
        "reference:577:601",
        "reference:577:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 116,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 577,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        576,
        578,
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:576:578",
        "reference:576:579",
        "reference:576:582",
        "reference:576:583",
        "reference:576:584",
        "reference:576:587",
        "reference:576:588",
        "reference:576:591",
        "reference:576:592",
        "reference:576:596",
        "reference:576:600",
        "reference:576:601",
        "reference:576:603",
        "reference:577:576",
        "reference:577:579",
        "reference:577:582",
        "reference:577:584",
        "reference:577:588",
        "reference:577:591",
        "reference:577:592",
        "reference:577:596",
        "reference:577:600",
        "reference:577:601",
        "reference:577:603",
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 578,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576
      ],
      "contributing_edge_ids": [
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 578,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 157,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 578,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 73,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 578,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        579,
        582,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 578,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 103,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 578,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        579,
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:578:579",
        "reference:578:582",
        "reference:578:584",
        "reference:578:588",
        "reference:578:591",
        "reference:578:592",
        "reference:578:596",
        "reference:578:600",
        "reference:578:601",
        "reference:578:603",
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 579,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        543,
        567,
        568,
        569,
        571,
        572,
        575,
        576,
        577,
        578
      ],
      "contributing_edge_ids": [
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 579,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        510,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 96,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 579,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 53,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 579,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        582,
        583,
        584,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 579,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 112,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 579,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        582,
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:579:582",
        "reference:579:583",
        "reference:579:584",
        "reference:579:588",
        "reference:579:591",
        "reference:579:592",
        "reference:579:596",
        "reference:579:600",
        "reference:579:601",
        "reference:579:603",
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 580,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 580,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 580,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 580,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 580,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 580,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 581,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        509,
        513,
        528,
        565
      ],
      "contributing_edge_ids": [
        "reference:509:581",
        "reference:513:581",
        "reference:528:581",
        "reference:565:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 581,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        197,
        200,
        234,
        488,
        509,
        511,
        513,
        516,
        528,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:197:513",
        "reference:200:513",
        "reference:234:513",
        "reference:509:528",
        "reference:513:528",
        "reference:516:528",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:509:581",
        "reference:513:581",
        "reference:528:581",
        "reference:565:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 9,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 581,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        64,
        131,
        144,
        154,
        162,
        166,
        168,
        175,
        187,
        189,
        193,
        197,
        200,
        209,
        210,
        234,
        433,
        484,
        488,
        493,
        507,
        509,
        511,
        513,
        514,
        516,
        520,
        522,
        523,
        528,
        529,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:187:197",
        "reference:193:197",
        "reference:131:200",
        "reference:144:200",
        "reference:154:200",
        "reference:162:200",
        "reference:166:200",
        "reference:168:200",
        "reference:175:200",
        "reference:189:200",
        "reference:193:234",
        "reference:209:234",
        "reference:210:234",
        "reference:64:511",
        "reference:197:513",
        "reference:200:513",
        "reference:234:513",
        "reference:509:528",
        "reference:513:528",
        "reference:516:528",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:509:581",
        "reference:513:581",
        "reference:528:581",
        "reference:565:581"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 581,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 581,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 581,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 582,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579
      ],
      "contributing_edge_ids": [
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 582,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 53,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 191,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 582,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 75,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 582,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        596,
        600
      ],
      "contributing_edge_ids": [
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 582,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 98,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 582,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        583,
        584,
        586,
        587,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:582:583",
        "reference:582:584",
        "reference:582:586",
        "reference:582:587",
        "reference:582:588",
        "reference:582:591",
        "reference:582:592",
        "reference:582:596",
        "reference:582:600",
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 583,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        535,
        543,
        558,
        567,
        571,
        572,
        575,
        576,
        579,
        582
      ],
      "contributing_edge_ids": [
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 583,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        275,
        433,
        484,
        507,
        510,
        514,
        523,
        531,
        533,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582
      ],
      "contributing_edge_ids": [
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 82,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 583,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 67,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 583,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        584,
        586,
        588,
        591,
        592,
        596,
        600,
        601,
        603,
        607,
        608,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 583,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        584,
        586,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 140,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 583,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        584,
        586,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        608,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:583:584",
        "reference:583:586",
        "reference:583:588",
        "reference:583:591",
        "reference:583:592",
        "reference:583:596",
        "reference:583:600",
        "reference:583:601",
        "reference:583:603",
        "reference:583:607",
        "reference:583:608",
        "reference:583:609",
        "reference:583:614",
        "reference:583:615",
        "reference:583:617",
        "reference:583:622",
        "reference:583:623",
        "reference:583:625",
        "reference:583:629",
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 584,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583
      ],
      "contributing_edge_ids": [
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 584,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 227,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 584,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 77,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 584,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        586,
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 584,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        586,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 83,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 584,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 28,
      "contributing_pr_ids": [
        586,
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:584:586",
        "reference:584:588",
        "reference:584:591",
        "reference:584:592",
        "reference:584:596",
        "reference:584:600",
        "reference:584:601",
        "reference:584:603",
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 585,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        23,
        144,
        361,
        528,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:23:585",
        "reference:144:585",
        "reference:361:585",
        "reference:528:585",
        "reference:531:585",
        "reference:565:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 585,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 49,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        318,
        361,
        433,
        484,
        488,
        493,
        507,
        509,
        511,
        513,
        514,
        516,
        520,
        522,
        523,
        528,
        529,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:318:361",
        "reference:509:528",
        "reference:513:528",
        "reference:516:528",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:23:585",
        "reference:144:585",
        "reference:361:585",
        "reference:528:585",
        "reference:531:585",
        "reference:565:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": 50,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 585,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        27,
        28,
        29,
        31,
        32,
        33,
        36,
        62,
        64,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        197,
        200,
        234,
        318,
        361,
        370,
        386,
        425,
        426,
        433,
        484,
        488,
        493,
        496,
        505,
        507,
        509,
        511,
        513,
        514,
        516,
        518,
        520,
        522,
        523,
        528,
        529,
        531,
        565
      ],
      "contributing_edge_ids": [
        "reference:7:10",
        "reference:13:14",
        "reference:18:19",
        "reference:7:20",
        "reference:13:20",
        "reference:17:20",
        "reference:18:20",
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:10:24",
        "reference:18:29",
        "reference:21:29",
        "reference:23:29",
        "reference:24:29",
        "reference:25:29",
        "reference:27:29",
        "reference:28:29",
        "reference:21:31",
        "reference:23:31",
        "reference:29:31",
        "reference:2:32",
        "reference:3:32",
        "reference:4:32",
        "reference:5:32",
        "reference:6:32",
        "reference:7:32",
        "reference:10:32",
        "reference:13:32",
        "reference:16:32",
        "reference:18:32",
        "reference:20:32",
        "reference:21:32",
        "reference:23:32",
        "reference:24:32",
        "reference:29:33",
        "reference:31:33",
        "reference:2:36",
        "reference:3:36",
        "reference:4:36",
        "reference:5:36",
        "reference:6:36",
        "reference:7:36",
        "reference:10:36",
        "reference:13:36",
        "reference:16:36",
        "reference:18:36",
        "reference:20:36",
        "reference:21:36",
        "reference:23:36",
        "reference:24:36",
        "reference:29:36",
        "reference:31:36",
        "reference:32:36",
        "reference:33:36",
        "reference:2:104",
        "reference:3:104",
        "reference:4:104",
        "reference:5:104",
        "reference:6:104",
        "reference:7:104",
        "reference:10:104",
        "reference:13:104",
        "reference:16:104",
        "reference:18:104",
        "reference:20:104",
        "reference:21:104",
        "reference:23:104",
        "reference:24:104",
        "reference:29:104",
        "reference:31:104",
        "reference:32:104",
        "reference:33:104",
        "reference:36:104",
        "reference:2:115",
        "reference:3:115",
        "reference:4:115",
        "reference:5:115",
        "reference:6:115",
        "reference:7:115",
        "reference:10:115",
        "reference:13:115",
        "reference:16:115",
        "reference:18:115",
        "reference:20:115",
        "reference:21:115",
        "reference:23:115",
        "reference:24:115",
        "reference:29:115",
        "reference:31:115",
        "reference:32:115",
        "reference:33:115",
        "reference:36:115",
        "reference:62:115",
        "reference:97:115",
        "reference:104:115",
        "reference:2:130",
        "reference:3:130",
        "reference:4:130",
        "reference:5:130",
        "reference:6:130",
        "reference:7:130",
        "reference:10:130",
        "reference:13:130",
        "reference:16:130",
        "reference:18:130",
        "reference:20:130",
        "reference:21:130",
        "reference:23:130",
        "reference:24:130",
        "reference:29:130",
        "reference:31:130",
        "reference:32:130",
        "reference:33:130",
        "reference:36:130",
        "reference:62:130",
        "reference:97:130",
        "reference:104:130",
        "reference:115:130",
        "reference:117:130",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:318:361",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:64:511",
        "reference:197:513",
        "reference:200:513",
        "reference:234:513",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:509:528",
        "reference:513:528",
        "reference:516:528",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:23:585",
        "reference:144:585",
        "reference:361:585",
        "reference:528:585",
        "reference:531:585",
        "reference:565:585"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 20,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 585,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        605
      ],
      "contributing_edge_ids": [
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 585,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        605
      ],
      "contributing_edge_ids": [
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 585,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        605
      ],
      "contributing_edge_ids": [
        "reference:585:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 586,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        558,
        571,
        572,
        575,
        582,
        583,
        584
      ],
      "contributing_edge_ids": [
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 586,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 29,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584
      ],
      "contributing_edge_ids": [
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 75,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 586,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 586,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        588,
        591,
        592,
        596,
        600,
        601,
        603
      ],
      "contributing_edge_ids": [
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 586,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 76,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 586,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        588,
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:586:588",
        "reference:586:591",
        "reference:586:592",
        "reference:586:596",
        "reference:586:600",
        "reference:586:601",
        "reference:586:603",
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 587,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        558,
        564,
        568,
        569,
        571,
        575,
        576,
        582
      ],
      "contributing_edge_ids": [
        "reference:558:587",
        "reference:564:587",
        "reference:568:587",
        "reference:569:587",
        "reference:571:587",
        "reference:575:587",
        "reference:576:587",
        "reference:582:587"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 587,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582
      ],
      "contributing_edge_ids": [
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:558:587",
        "reference:564:587",
        "reference:568:587",
        "reference:569:587",
        "reference:571:587",
        "reference:575:587",
        "reference:576:587",
        "reference:582:587"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 98,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 587,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:558:587",
        "reference:564:587",
        "reference:568:587",
        "reference:569:587",
        "reference:571:587",
        "reference:575:587",
        "reference:576:587",
        "reference:582:587"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 587,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 587,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 587,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 588,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586
      ],
      "contributing_edge_ids": [
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 588,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 57,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 262,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 588,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 79,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 588,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        591,
        592,
        594,
        596,
        600,
        601,
        603,
        605
      ],
      "contributing_edge_ids": [
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 588,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 68,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 588,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        591,
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:588:591",
        "reference:588:592",
        "reference:588:594",
        "reference:588:596",
        "reference:588:600",
        "reference:588:601",
        "reference:588:603",
        "reference:588:605",
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 589,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 589,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 589,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 589,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 589,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 589,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 590,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        493,
        535
      ],
      "contributing_edge_ids": [
        "reference:493:590",
        "reference:535:590"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 590,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        433,
        484,
        493,
        510,
        523,
        531,
        533,
        535
      ],
      "contributing_edge_ids": [
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:493:590",
        "reference:535:590"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 6,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 590,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 30,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        463,
        484,
        493,
        496,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        535
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:463:510",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:493:590",
        "reference:535:590"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 9,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 590,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        597,
        612
      ],
      "contributing_edge_ids": [
        "reference:590:597",
        "reference:590:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 590,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        597,
        612
      ],
      "contributing_edge_ids": [
        "reference:590:597",
        "reference:590:612",
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 590,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        597,
        612
      ],
      "contributing_edge_ids": [
        "reference:590:597",
        "reference:590:612",
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 591,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588
      ],
      "contributing_edge_ids": [
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 591,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 292,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 591,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 80,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 591,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        592,
        593,
        594,
        596,
        600,
        601,
        603,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 591,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 112,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 591,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        592,
        593,
        594,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:591:592",
        "reference:591:593",
        "reference:591:594",
        "reference:591:596",
        "reference:591:600",
        "reference:591:601",
        "reference:591:603",
        "reference:591:607",
        "reference:591:609",
        "reference:591:614",
        "reference:591:615",
        "reference:591:617",
        "reference:591:622",
        "reference:591:623",
        "reference:591:625",
        "reference:591:629",
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 592,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591
      ],
      "contributing_edge_ids": [
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 592,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 323,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 592,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 81,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 592,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        593,
        596,
        598,
        600,
        601,
        603,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 592,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        593,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": 97,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 592,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        593,
        596,
        598,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:592:593",
        "reference:592:596",
        "reference:592:598",
        "reference:592:600",
        "reference:592:601",
        "reference:592:603",
        "reference:592:607",
        "reference:592:609",
        "reference:592:614",
        "reference:592:615",
        "reference:592:617",
        "reference:592:622",
        "reference:592:623",
        "reference:592:625",
        "reference:592:629",
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 593,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        591,
        592,
        596,
        599
      ],
      "contributing_edge_ids": [
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 593,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 35,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        596,
        599
      ],
      "contributing_edge_ids": [
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 96,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 593,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 62,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        596,
        599
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 593,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        601,
        603,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 593,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        601,
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 61,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 593,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        601,
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 594,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        568,
        588,
        591
      ],
      "contributing_edge_ids": [
        "reference:568:594",
        "reference:588:594",
        "reference:591:594"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 594,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:568:594",
        "reference:588:594",
        "reference:591:594"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 77,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 594,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 59,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:568:594",
        "reference:588:594",
        "reference:591:594"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 594,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 594,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 594,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 595,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 595,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 595,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 595,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        598
      ],
      "contributing_edge_ids": [
        "reference:595:598"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 595,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        598
      ],
      "contributing_edge_ids": [
        "reference:595:598"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 595,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        598
      ],
      "contributing_edge_ids": [
        "reference:595:598"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 596,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 33,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592
      ],
      "contributing_edge_ids": [
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 596,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 355,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 596,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 82,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 596,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        593,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 596,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        593,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 83,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 596,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        593,
        600,
        601,
        603,
        605,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:596:593",
        "reference:596:600",
        "reference:596:601",
        "reference:596:603",
        "reference:596:605",
        "reference:596:607",
        "reference:596:609",
        "reference:596:614",
        "reference:596:615",
        "reference:596:617",
        "reference:596:622",
        "reference:596:623",
        "reference:596:625",
        "reference:596:629",
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 597,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        535,
        590
      ],
      "contributing_edge_ids": [
        "reference:535:597",
        "reference:590:597"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 597,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        433,
        484,
        493,
        510,
        523,
        531,
        533,
        535,
        590
      ],
      "contributing_edge_ids": [
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:493:590",
        "reference:535:590",
        "reference:535:597",
        "reference:590:597"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 597,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        370,
        386,
        425,
        426,
        433,
        463,
        484,
        493,
        496,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        535,
        590
      ],
      "contributing_edge_ids": [
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:463:510",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:493:590",
        "reference:535:590",
        "reference:535:597",
        "reference:590:597"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 597,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        612
      ],
      "contributing_edge_ids": [
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 597,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        612
      ],
      "contributing_edge_ids": [
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 597,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        612
      ],
      "contributing_edge_ids": [
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 598,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        592,
        595
      ],
      "contributing_edge_ids": [
        "reference:592:598",
        "reference:595:598"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 598,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        595
      ],
      "contributing_edge_ids": [
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:592:598",
        "reference:595:598"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 32,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 598,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        595
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:592:598",
        "reference:595:598"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 598,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 598,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 598,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 599,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 599,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 599,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 599,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        593,
        601,
        603,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:599:593",
        "reference:599:601",
        "reference:599:603",
        "reference:599:607",
        "reference:599:609",
        "reference:599:614",
        "reference:599:615",
        "reference:599:617",
        "reference:599:622",
        "reference:599:623",
        "reference:599:625",
        "reference:599:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 599,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        593,
        601,
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:599:593",
        "reference:599:601",
        "reference:599:603",
        "reference:599:607",
        "reference:599:609",
        "reference:599:614",
        "reference:599:615",
        "reference:599:617",
        "reference:599:622",
        "reference:599:623",
        "reference:599:625",
        "reference:599:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 72,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 599,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        593,
        601,
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:593:601",
        "reference:593:603",
        "reference:593:607",
        "reference:593:609",
        "reference:593:614",
        "reference:593:615",
        "reference:593:617",
        "reference:593:622",
        "reference:593:623",
        "reference:593:625",
        "reference:593:629",
        "reference:599:593",
        "reference:599:601",
        "reference:599:603",
        "reference:599:607",
        "reference:599:609",
        "reference:599:614",
        "reference:599:615",
        "reference:599:617",
        "reference:599:622",
        "reference:599:623",
        "reference:599:625",
        "reference:599:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 600,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 34,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        596
      ],
      "contributing_edge_ids": [
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 600,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        596
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 388,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 600,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 83,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        596
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 600,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 11,
      "contributing_pr_ids": [
        601,
        603,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 600,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        601,
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 61,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 600,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        601,
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:600:601",
        "reference:600:603",
        "reference:600:607",
        "reference:600:609",
        "reference:600:614",
        "reference:600:615",
        "reference:600:617",
        "reference:600:622",
        "reference:600:623",
        "reference:600:625",
        "reference:600:629",
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 601,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 36,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600
      ],
      "contributing_edge_ids": [
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 601,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 400,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 601,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 86,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 601,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        603,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 601,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 51,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 601,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        603,
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:601:603",
        "reference:601:607",
        "reference:601:609",
        "reference:601:614",
        "reference:601:615",
        "reference:601:617",
        "reference:601:622",
        "reference:601:623",
        "reference:601:625",
        "reference:601:629",
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 602,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 602,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 602,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 602,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 602,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 602,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 603,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        275,
        484,
        507,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601
      ],
      "contributing_edge_ids": [
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 603,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 65,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 436,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 603,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 87,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        315,
        318,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        434,
        438,
        442,
        443,
        444,
        445,
        447,
        448,
        463,
        472,
        484,
        493,
        496,
        503,
        505,
        507,
        510,
        514,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        539,
        540,
        541,
        542,
        543,
        544,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:318:361",
        "reference:315:384",
        "reference:318:384",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:442:444",
        "reference:443:444",
        "reference:434:447",
        "reference:442:447",
        "reference:445:447",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:531:533",
        "reference:531:534",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:434:540",
        "reference:442:540",
        "reference:448:540",
        "reference:472:540",
        "reference:493:540",
        "reference:510:543",
        "reference:493:545",
        "reference:543:547",
        "reference:544:547",
        "reference:548:547",
        "reference:386:548",
        "reference:442:548",
        "reference:444:548",
        "reference:463:548",
        "reference:484:548",
        "reference:493:548",
        "reference:503:548",
        "reference:510:548",
        "reference:531:548",
        "reference:533:548",
        "reference:534:548",
        "reference:535:548",
        "reference:539:548",
        "reference:540:548",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 603,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        607,
        609
      ],
      "contributing_edge_ids": [
        "reference:603:607",
        "reference:603:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 603,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 603,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        607,
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:603:607",
        "reference:603:609",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 604,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 604,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 604,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 604,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        607,
        609,
        611,
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        622,
        623,
        624,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:604:607",
        "reference:604:609",
        "reference:604:611",
        "reference:604:613",
        "reference:604:614",
        "reference:604:615",
        "reference:604:616",
        "reference:604:617",
        "reference:604:618",
        "reference:604:619",
        "reference:604:622",
        "reference:604:623",
        "reference:604:624",
        "reference:604:625",
        "reference:604:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 604,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        607,
        609,
        611,
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:604:607",
        "reference:604:609",
        "reference:604:611",
        "reference:604:613",
        "reference:604:614",
        "reference:604:615",
        "reference:604:616",
        "reference:604:617",
        "reference:604:618",
        "reference:604:619",
        "reference:604:622",
        "reference:604:623",
        "reference:604:624",
        "reference:604:625",
        "reference:604:629",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:618:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 51,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 604,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        607,
        609,
        611,
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:604:607",
        "reference:604:609",
        "reference:604:611",
        "reference:604:613",
        "reference:604:614",
        "reference:604:615",
        "reference:604:616",
        "reference:604:617",
        "reference:604:618",
        "reference:604:619",
        "reference:604:622",
        "reference:604:623",
        "reference:604:624",
        "reference:604:625",
        "reference:604:629",
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:618:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 605,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        526,
        573,
        585,
        588,
        596
      ],
      "contributing_edge_ids": [
        "reference:526:605",
        "reference:573:605",
        "reference:585:605",
        "reference:588:605",
        "reference:596:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 605,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        23,
        64,
        144,
        275,
        279,
        361,
        484,
        488,
        507,
        511,
        514,
        519,
        526,
        528,
        530,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        565,
        566,
        567,
        568,
        569,
        570,
        571,
        572,
        573,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        588,
        591,
        592,
        596
      ],
      "contributing_edge_ids": [
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:64:573",
        "reference:488:573",
        "reference:511:573",
        "reference:519:573",
        "reference:526:573",
        "reference:530:573",
        "reference:531:573",
        "reference:565:573",
        "reference:566:573",
        "reference:570:573",
        "reference:23:585",
        "reference:144:585",
        "reference:361:585",
        "reference:528:585",
        "reference:531:585",
        "reference:565:585",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:526:605",
        "reference:573:605",
        "reference:585:605",
        "reference:588:605",
        "reference:596:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 82,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 605,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 115,
      "contributing_pr_ids": [
        2,
        3,
        4,
        5,
        6,
        7,
        10,
        13,
        14,
        16,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        29,
        31,
        32,
        33,
        36,
        62,
        64,
        68,
        69,
        71,
        73,
        76,
        97,
        104,
        115,
        117,
        128,
        130,
        144,
        244,
        275,
        276,
        279,
        318,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        488,
        493,
        503,
        505,
        507,
        509,
        510,
        511,
        513,
        514,
        516,
        519,
        520,
        522,
        523,
        526,
        528,
        529,
        530,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        565,
        566,
        567,
        568,
        569,
        570,
        571,
        572,
        573,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        585,
        586,
        588,
        591,
        592,
        596
      ],
      "contributing_edge_ids": [
        "reference:7:23",
        "reference:10:23",
        "reference:13:23",
        "reference:14:23",
        "reference:19:23",
        "reference:20:23",
        "reference:21:23",
        "reference:22:23",
        "reference:68:64",
        "reference:69:64",
        "reference:71:64",
        "reference:73:64",
        "reference:76:64",
        "reference:2:144",
        "reference:3:144",
        "reference:4:144",
        "reference:5:144",
        "reference:6:144",
        "reference:7:144",
        "reference:10:144",
        "reference:13:144",
        "reference:16:144",
        "reference:18:144",
        "reference:20:144",
        "reference:21:144",
        "reference:23:144",
        "reference:24:144",
        "reference:29:144",
        "reference:31:144",
        "reference:32:144",
        "reference:33:144",
        "reference:36:144",
        "reference:62:144",
        "reference:97:144",
        "reference:104:144",
        "reference:115:144",
        "reference:117:144",
        "reference:128:144",
        "reference:130:144",
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:244:279",
        "reference:276:279",
        "reference:318:361",
        "reference:64:511",
        "reference:493:514",
        "reference:507:514",
        "reference:64:519",
        "reference:64:526",
        "reference:279:526",
        "reference:519:526",
        "reference:509:528",
        "reference:513:528",
        "reference:516:528",
        "reference:64:530",
        "reference:488:530",
        "reference:511:530",
        "reference:519:530",
        "reference:526:530",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:488:565",
        "reference:511:565",
        "reference:531:565",
        "reference:64:566",
        "reference:488:566",
        "reference:493:566",
        "reference:511:566",
        "reference:519:566",
        "reference:526:566",
        "reference:530:566",
        "reference:531:566",
        "reference:565:566",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:64:570",
        "reference:488:570",
        "reference:511:570",
        "reference:519:570",
        "reference:526:570",
        "reference:530:570",
        "reference:531:570",
        "reference:565:570",
        "reference:566:570",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:64:573",
        "reference:488:573",
        "reference:511:573",
        "reference:519:573",
        "reference:526:573",
        "reference:530:573",
        "reference:531:573",
        "reference:565:573",
        "reference:566:573",
        "reference:570:573",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:23:585",
        "reference:144:585",
        "reference:361:585",
        "reference:528:585",
        "reference:531:585",
        "reference:565:585",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:526:605",
        "reference:573:605",
        "reference:585:605",
        "reference:588:605",
        "reference:596:605"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 21,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 605,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 605,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 605,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 606,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 606,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 606,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 606,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 606,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 606,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 607,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604
      ],
      "contributing_edge_ids": [
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 607,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 46,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 260,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 607,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 70,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 607,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        609,
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 607,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 41,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 607,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 15,
      "contributing_pr_ids": [
        609,
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:607:609",
        "reference:607:614",
        "reference:607:615",
        "reference:607:617",
        "reference:607:622",
        "reference:607:623",
        "reference:607:625",
        "reference:607:629",
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 608,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        520,
        568,
        569,
        571,
        575,
        583
      ],
      "contributing_edge_ids": [
        "reference:520:608",
        "reference:568:608",
        "reference:569:608",
        "reference:571:608",
        "reference:575:608",
        "reference:583:608"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 608,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 31,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        514,
        520,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        579,
        582,
        583
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:520:608",
        "reference:568:608",
        "reference:569:608",
        "reference:571:608",
        "reference:575:608",
        "reference:583:608"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 53,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 608,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 56,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:520:608",
        "reference:568:608",
        "reference:569:608",
        "reference:571:608",
        "reference:575:608",
        "reference:583:608"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 608,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 608,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 608,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 609,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 17,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607
      ],
      "contributing_edge_ids": [
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 609,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 47,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 276,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 609,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 71,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 609,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        614,
        615,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 609,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 34,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 609,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 14,
      "contributing_pr_ids": [
        614,
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:609:614",
        "reference:609:615",
        "reference:609:617",
        "reference:609:622",
        "reference:609:623",
        "reference:609:625",
        "reference:609:629",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 610,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 610,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 610,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 610,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        613,
        614,
        615,
        617,
        618
      ],
      "contributing_edge_ids": [
        "reference:610:613",
        "reference:610:614",
        "reference:610:615",
        "reference:610:617",
        "reference:610:618"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 610,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        622,
        623,
        624,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:610:613",
        "reference:610:614",
        "reference:610:615",
        "reference:610:617",
        "reference:610:618",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:618:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 610,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 16,
      "contributing_pr_ids": [
        613,
        614,
        615,
        616,
        617,
        618,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:610:613",
        "reference:610:614",
        "reference:610:615",
        "reference:610:617",
        "reference:610:618",
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:618:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 611,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        604
      ],
      "contributing_edge_ids": [
        "reference:604:611"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 611,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        604
      ],
      "contributing_edge_ids": [
        "reference:604:611"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 611,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        604
      ],
      "contributing_edge_ids": [
        "reference:604:611"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 611,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 611,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 611,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 612,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        543,
        590,
        597
      ],
      "contributing_edge_ids": [
        "reference:543:612",
        "reference:590:612",
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 612,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        493,
        510,
        535,
        543,
        590,
        597
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:493:590",
        "reference:535:590",
        "reference:535:597",
        "reference:590:597",
        "reference:543:612",
        "reference:590:612",
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 5,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 612,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        433,
        463,
        484,
        493,
        510,
        523,
        531,
        533,
        535,
        543,
        590,
        597
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:493:590",
        "reference:535:590",
        "reference:535:597",
        "reference:590:597",
        "reference:543:612",
        "reference:590:612",
        "reference:597:612"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 612,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 612,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 612,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 613,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        543,
        568,
        571,
        604,
        610
      ],
      "contributing_edge_ids": [
        "reference:543:613",
        "reference:568:613",
        "reference:571:613",
        "reference:604:613",
        "reference:610:613"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 613,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        275,
        484,
        507,
        510,
        514,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        604,
        610
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:613",
        "reference:568:613",
        "reference:571:613",
        "reference:604:613",
        "reference:610:613"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 21,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 613,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 48,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        510,
        514,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        604,
        610
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:613",
        "reference:568:613",
        "reference:571:613",
        "reference:604:613",
        "reference:610:613"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 613,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 613,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 613,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 614,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 18,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        610
      ],
      "contributing_edge_ids": [
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 614,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 49,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 256,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 614,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 73,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 614,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        615,
        616,
        617,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 614,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 27,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 614,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 13,
      "contributing_pr_ids": [
        615,
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:614:615",
        "reference:614:616",
        "reference:614:617",
        "reference:614:622",
        "reference:614:623",
        "reference:614:625",
        "reference:614:629",
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 615,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 19,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        610,
        614
      ],
      "contributing_edge_ids": [
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 615,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 50,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 274,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 615,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 74,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 615,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        616,
        617,
        619,
        622,
        623,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 615,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 20,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 615,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 12,
      "contributing_pr_ids": [
        616,
        617,
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:615:616",
        "reference:615:617",
        "reference:615:619",
        "reference:615:622",
        "reference:615:623",
        "reference:615:625",
        "reference:615:629",
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 616,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        543,
        568,
        604,
        614,
        615
      ],
      "contributing_edge_ids": [
        "reference:543:616",
        "reference:568:616",
        "reference:604:616",
        "reference:614:616",
        "reference:615:616"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 616,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 37,
      "contributing_pr_ids": [
        275,
        484,
        507,
        509,
        510,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        564,
        567,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        610,
        614,
        615
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:543:616",
        "reference:568:616",
        "reference:604:616",
        "reference:614:616",
        "reference:615:616"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 10,
      "round_2_sum_neighbor_degree": 54,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 616,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 74,
      "contributing_pr_ids": [
        275,
        361,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:463:510",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:543:616",
        "reference:568:616",
        "reference:604:616",
        "reference:614:616",
        "reference:615:616"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 616,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 616,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 616,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 617,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 20,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        610,
        614,
        615
      ],
      "contributing_edge_ids": [
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 617,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 51,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": 293,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 617,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 75,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 617,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        619,
        622,
        623,
        624,
        625,
        629
      ],
      "contributing_edge_ids": [
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 617,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 15,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 617,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 10,
      "contributing_pr_ids": [
        619,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:617:619",
        "reference:617:622",
        "reference:617:623",
        "reference:617:624",
        "reference:617:625",
        "reference:617:629",
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 618,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        543,
        604,
        610
      ],
      "contributing_edge_ids": [
        "reference:543:618",
        "reference:604:618",
        "reference:610:618"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 618,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        510,
        543,
        604,
        610
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:543:618",
        "reference:604:618",
        "reference:610:618"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 618,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        463,
        510,
        543,
        604,
        610
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:510:543",
        "reference:543:618",
        "reference:604:618",
        "reference:610:618"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 618,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        629
      ],
      "contributing_edge_ids": [
        "reference:618:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 618,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:618:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 618,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:618:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 619,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        604,
        615,
        617
      ],
      "contributing_edge_ids": [
        "reference:604:619",
        "reference:615:619",
        "reference:617:619"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 619,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        610,
        614,
        615,
        617
      ],
      "contributing_edge_ids": [
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:604:619",
        "reference:615:619",
        "reference:617:619"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 5,
      "round_2_sum_neighbor_degree": 39,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 619,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 52,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:604:619",
        "reference:615:619",
        "reference:617:619"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 12,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 619,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 619,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 619,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 620,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 620,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 620,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 620,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        623,
        625,
        626,
        630,
        631
      ],
      "contributing_edge_ids": [
        "reference:620:623",
        "reference:620:625",
        "reference:620:626",
        "reference:620:630",
        "reference:620:631"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 620,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        623,
        625,
        626,
        627,
        629,
        630,
        631,
        633
      ],
      "contributing_edge_ids": [
        "reference:620:623",
        "reference:620:625",
        "reference:620:626",
        "reference:620:630",
        "reference:620:631",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 8,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 620,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 9,
      "contributing_pr_ids": [
        623,
        625,
        626,
        627,
        629,
        630,
        631,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:620:623",
        "reference:620:625",
        "reference:620:626",
        "reference:620:630",
        "reference:620:631",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 621,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 621,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 621,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 621,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        628
      ],
      "contributing_edge_ids": [
        "reference:621:628"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 621,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        628
      ],
      "contributing_edge_ids": [
        "reference:621:628"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 621,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        628
      ],
      "contributing_edge_ids": [
        "reference:621:628"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 622,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 21,
      "contributing_pr_ids": [
        509,
        516,
        531,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617
      ],
      "contributing_edge_ids": [
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 622,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 58,
      "contributing_pr_ids": [
        275,
        425,
        433,
        442,
        484,
        493,
        505,
        507,
        509,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 322,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 622,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 88,
      "contributing_pr_ids": [
        10,
        18,
        24,
        32,
        36,
        104,
        115,
        130,
        144,
        275,
        361,
        370,
        384,
        386,
        425,
        426,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        496,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        518,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:10:433",
        "reference:18:433",
        "reference:24:433",
        "reference:32:433",
        "reference:36:433",
        "reference:104:433",
        "reference:115:433",
        "reference:130:433",
        "reference:144:433",
        "reference:370:433",
        "reference:386:433",
        "reference:425:433",
        "reference:426:433",
        "reference:493:514",
        "reference:507:514",
        "reference:493:522",
        "reference:433:523",
        "reference:484:523",
        "reference:493:523",
        "reference:496:523",
        "reference:505:523",
        "reference:507:523",
        "reference:514:523",
        "reference:518:523",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 622,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 7,
      "contributing_pr_ids": [
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 622,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 14,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 622,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 8,
      "contributing_pr_ids": [
        623,
        624,
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:622:623",
        "reference:622:624",
        "reference:622:625",
        "reference:622:626",
        "reference:622:627",
        "reference:622:629",
        "reference:622:632",
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 623,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 22,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617,
        620,
        622
      ],
      "contributing_edge_ids": [
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 623,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 54,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        620,
        622
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 334,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 623,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 78,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        620,
        622
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 623,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 5,
      "contributing_pr_ids": [
        625,
        626,
        627,
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 623,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": 7,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 623,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        625,
        626,
        627,
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:623:625",
        "reference:623:626",
        "reference:623:627",
        "reference:623:629",
        "reference:623:633",
        "reference:625:629",
        "reference:626:629",
        "reference:626:633",
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 624,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 4,
      "contributing_pr_ids": [
        543,
        604,
        617,
        622
      ],
      "contributing_edge_ids": [
        "reference:543:624",
        "reference:604:624",
        "reference:617:624",
        "reference:622:624"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 624,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 25,
      "contributing_pr_ids": [
        509,
        510,
        516,
        531,
        543,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        622
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:543:624",
        "reference:604:624",
        "reference:617:624",
        "reference:622:624"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 42,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 624,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        275,
        425,
        433,
        442,
        463,
        484,
        493,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        622
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:510:543",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:543:624",
        "reference:604:624",
        "reference:617:624",
        "reference:622:624"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 624,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        629
      ],
      "contributing_edge_ids": [
        "reference:624:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 624,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:624:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 624,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:624:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 625,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 23,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617,
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:509:625",
        "reference:516:625",
        "reference:568:625",
        "reference:569:625",
        "reference:571:625",
        "reference:575:625",
        "reference:583:625",
        "reference:591:625",
        "reference:592:625",
        "reference:593:625",
        "reference:596:625",
        "reference:599:625",
        "reference:600:625",
        "reference:601:625",
        "reference:604:625",
        "reference:607:625",
        "reference:609:625",
        "reference:614:625",
        "reference:615:625",
        "reference:617:625",
        "reference:620:625",
        "reference:622:625",
        "reference:623:625"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 625,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 55,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:509:625",
        "reference:516:625",
        "reference:568:625",
        "reference:569:625",
        "reference:571:625",
        "reference:575:625",
        "reference:583:625",
        "reference:591:625",
        "reference:592:625",
        "reference:593:625",
        "reference:596:625",
        "reference:599:625",
        "reference:600:625",
        "reference:601:625",
        "reference:604:625",
        "reference:607:625",
        "reference:609:625",
        "reference:614:625",
        "reference:615:625",
        "reference:617:625",
        "reference:620:625",
        "reference:622:625",
        "reference:623:625"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 13,
      "round_2_sum_neighbor_degree": 356,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 625,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 79,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:509:625",
        "reference:516:625",
        "reference:568:625",
        "reference:569:625",
        "reference:571:625",
        "reference:575:625",
        "reference:583:625",
        "reference:591:625",
        "reference:592:625",
        "reference:593:625",
        "reference:596:625",
        "reference:599:625",
        "reference:600:625",
        "reference:601:625",
        "reference:604:625",
        "reference:607:625",
        "reference:609:625",
        "reference:614:625",
        "reference:615:625",
        "reference:617:625",
        "reference:620:625",
        "reference:622:625",
        "reference:623:625"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 16,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 625,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        629
      ],
      "contributing_edge_ids": [
        "reference:625:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 625,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 625,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:625:629",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 626,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:620:626",
        "reference:622:626",
        "reference:623:626"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 626,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 24,
      "contributing_pr_ids": [
        509,
        516,
        531,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617,
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:620:626",
        "reference:622:626",
        "reference:623:626"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 7,
      "round_2_sum_neighbor_degree": 43,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 626,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 61,
      "contributing_pr_ids": [
        275,
        425,
        433,
        442,
        484,
        493,
        505,
        507,
        509,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:620:626",
        "reference:622:626",
        "reference:623:626"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 626,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:626:629",
        "reference:626:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 626,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:626:629",
        "reference:626:633",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": 1,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 626,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 2,
      "contributing_pr_ids": [
        629,
        633
      ],
      "contributing_edge_ids": [
        "reference:626:629",
        "reference:626:633",
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 627,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        543,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:543:627",
        "reference:622:627",
        "reference:623:627"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 2,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 627,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        509,
        510,
        516,
        531,
        543,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617,
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 44,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 627,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 63,
      "contributing_pr_ids": [
        275,
        425,
        433,
        442,
        463,
        484,
        493,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        620,
        622,
        623
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:510:543",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 627,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:627:629",
        "reference:627:632",
        "reference:627:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 627,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": 2,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 627,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        629,
        632,
        633
      ],
      "contributing_edge_ids": [
        "reference:627:629",
        "reference:627:632",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 628,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        621
      ],
      "contributing_edge_ids": [
        "reference:621:628"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 628,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        621
      ],
      "contributing_edge_ids": [
        "reference:621:628"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 628,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        621
      ],
      "contributing_edge_ids": [
        "reference:621:628"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 628,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 628,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 628,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 629,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 27,
      "contributing_pr_ids": [
        509,
        516,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617,
        618,
        622,
        623,
        624,
        625,
        626,
        627
      ],
      "contributing_edge_ids": [
        "reference:509:629",
        "reference:516:629",
        "reference:568:629",
        "reference:569:629",
        "reference:571:629",
        "reference:575:629",
        "reference:583:629",
        "reference:591:629",
        "reference:592:629",
        "reference:593:629",
        "reference:596:629",
        "reference:599:629",
        "reference:600:629",
        "reference:601:629",
        "reference:604:629",
        "reference:607:629",
        "reference:609:629",
        "reference:614:629",
        "reference:615:629",
        "reference:617:629",
        "reference:618:629",
        "reference:622:629",
        "reference:623:629",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:627:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 6,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 629,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 60,
      "contributing_pr_ids": [
        275,
        425,
        442,
        484,
        505,
        507,
        509,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        618,
        620,
        622,
        623,
        624,
        625,
        626,
        627
      ],
      "contributing_edge_ids": [
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:543:618",
        "reference:604:618",
        "reference:610:618",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:543:624",
        "reference:604:624",
        "reference:617:624",
        "reference:622:624",
        "reference:509:625",
        "reference:516:625",
        "reference:568:625",
        "reference:569:625",
        "reference:571:625",
        "reference:575:625",
        "reference:583:625",
        "reference:591:625",
        "reference:592:625",
        "reference:593:625",
        "reference:596:625",
        "reference:599:625",
        "reference:600:625",
        "reference:601:625",
        "reference:604:625",
        "reference:607:625",
        "reference:609:625",
        "reference:614:625",
        "reference:615:625",
        "reference:617:625",
        "reference:620:625",
        "reference:622:625",
        "reference:623:625",
        "reference:620:626",
        "reference:622:626",
        "reference:623:626",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627",
        "reference:509:629",
        "reference:516:629",
        "reference:568:629",
        "reference:569:629",
        "reference:571:629",
        "reference:575:629",
        "reference:583:629",
        "reference:591:629",
        "reference:592:629",
        "reference:593:629",
        "reference:596:629",
        "reference:599:629",
        "reference:600:629",
        "reference:601:629",
        "reference:604:629",
        "reference:607:629",
        "reference:609:629",
        "reference:614:629",
        "reference:615:629",
        "reference:617:629",
        "reference:618:629",
        "reference:622:629",
        "reference:623:629",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:627:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": 392,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 629,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 84,
      "contributing_pr_ids": [
        275,
        361,
        370,
        384,
        386,
        425,
        433,
        438,
        442,
        444,
        447,
        463,
        484,
        493,
        503,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        533,
        534,
        535,
        540,
        541,
        542,
        543,
        545,
        547,
        548,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        618,
        620,
        622,
        623,
        624,
        625,
        626,
        627
      ],
      "contributing_edge_ids": [
        "reference:384:275",
        "reference:433:275",
        "reference:438:275",
        "reference:442:275",
        "reference:447:275",
        "reference:559:275",
        "reference:370:425",
        "reference:493:514",
        "reference:507:514",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:433:535",
        "reference:484:535",
        "reference:510:535",
        "reference:523:535",
        "reference:531:535",
        "reference:533:535",
        "reference:510:543",
        "reference:361:550",
        "reference:484:551",
        "reference:534:551",
        "reference:535:551",
        "reference:541:551",
        "reference:543:551",
        "reference:547:551",
        "reference:548:551",
        "reference:386:552",
        "reference:442:552",
        "reference:444:552",
        "reference:463:552",
        "reference:484:552",
        "reference:493:552",
        "reference:503:552",
        "reference:510:552",
        "reference:531:552",
        "reference:534:552",
        "reference:535:552",
        "reference:540:552",
        "reference:541:552",
        "reference:542:552",
        "reference:543:552",
        "reference:545:552",
        "reference:547:552",
        "reference:543:559",
        "reference:552:559",
        "reference:558:559",
        "reference:543:561",
        "reference:543:562",
        "reference:551:562",
        "reference:552:562",
        "reference:558:562",
        "reference:559:562",
        "reference:561:562",
        "reference:543:564",
        "reference:551:564",
        "reference:552:564",
        "reference:558:564",
        "reference:559:564",
        "reference:561:564",
        "reference:562:564",
        "reference:543:567",
        "reference:558:567",
        "reference:559:567",
        "reference:561:567",
        "reference:562:567",
        "reference:564:567",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:275:574",
        "reference:484:574",
        "reference:507:574",
        "reference:514:574",
        "reference:531:574",
        "reference:535:574",
        "reference:543:574",
        "reference:550:574",
        "reference:551:574",
        "reference:552:574",
        "reference:558:574",
        "reference:559:574",
        "reference:561:574",
        "reference:562:574",
        "reference:564:574",
        "reference:567:574",
        "reference:568:574",
        "reference:569:574",
        "reference:571:574",
        "reference:572:574",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:275:576",
        "reference:484:576",
        "reference:507:576",
        "reference:514:576",
        "reference:531:576",
        "reference:535:576",
        "reference:543:576",
        "reference:550:576",
        "reference:551:576",
        "reference:552:576",
        "reference:558:576",
        "reference:559:576",
        "reference:561:576",
        "reference:562:576",
        "reference:564:576",
        "reference:567:576",
        "reference:568:576",
        "reference:569:576",
        "reference:571:576",
        "reference:572:576",
        "reference:575:576",
        "reference:577:576",
        "reference:572:577",
        "reference:275:578",
        "reference:484:578",
        "reference:507:578",
        "reference:514:578",
        "reference:531:578",
        "reference:535:578",
        "reference:543:578",
        "reference:550:578",
        "reference:551:578",
        "reference:552:578",
        "reference:558:578",
        "reference:559:578",
        "reference:561:578",
        "reference:562:578",
        "reference:564:578",
        "reference:567:578",
        "reference:568:578",
        "reference:569:578",
        "reference:571:578",
        "reference:572:578",
        "reference:574:578",
        "reference:575:578",
        "reference:576:578",
        "reference:543:579",
        "reference:567:579",
        "reference:568:579",
        "reference:569:579",
        "reference:571:579",
        "reference:572:579",
        "reference:575:579",
        "reference:576:579",
        "reference:577:579",
        "reference:578:579",
        "reference:275:582",
        "reference:484:582",
        "reference:507:582",
        "reference:514:582",
        "reference:531:582",
        "reference:535:582",
        "reference:543:582",
        "reference:550:582",
        "reference:551:582",
        "reference:552:582",
        "reference:558:582",
        "reference:559:582",
        "reference:561:582",
        "reference:562:582",
        "reference:564:582",
        "reference:567:582",
        "reference:568:582",
        "reference:569:582",
        "reference:571:582",
        "reference:572:582",
        "reference:574:582",
        "reference:575:582",
        "reference:576:582",
        "reference:577:582",
        "reference:578:582",
        "reference:579:582",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:584",
        "reference:484:584",
        "reference:507:584",
        "reference:514:584",
        "reference:531:584",
        "reference:535:584",
        "reference:543:584",
        "reference:550:584",
        "reference:551:584",
        "reference:552:584",
        "reference:558:584",
        "reference:559:584",
        "reference:561:584",
        "reference:562:584",
        "reference:564:584",
        "reference:567:584",
        "reference:568:584",
        "reference:569:584",
        "reference:571:584",
        "reference:572:584",
        "reference:574:584",
        "reference:575:584",
        "reference:576:584",
        "reference:577:584",
        "reference:578:584",
        "reference:579:584",
        "reference:582:584",
        "reference:583:584",
        "reference:558:586",
        "reference:571:586",
        "reference:572:586",
        "reference:575:586",
        "reference:582:586",
        "reference:583:586",
        "reference:584:586",
        "reference:275:588",
        "reference:484:588",
        "reference:507:588",
        "reference:514:588",
        "reference:531:588",
        "reference:535:588",
        "reference:543:588",
        "reference:550:588",
        "reference:551:588",
        "reference:552:588",
        "reference:558:588",
        "reference:559:588",
        "reference:561:588",
        "reference:562:588",
        "reference:564:588",
        "reference:567:588",
        "reference:568:588",
        "reference:569:588",
        "reference:571:588",
        "reference:572:588",
        "reference:574:588",
        "reference:575:588",
        "reference:576:588",
        "reference:577:588",
        "reference:578:588",
        "reference:579:588",
        "reference:582:588",
        "reference:583:588",
        "reference:584:588",
        "reference:586:588",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:275:603",
        "reference:484:603",
        "reference:507:603",
        "reference:514:603",
        "reference:531:603",
        "reference:535:603",
        "reference:543:603",
        "reference:550:603",
        "reference:551:603",
        "reference:552:603",
        "reference:558:603",
        "reference:559:603",
        "reference:561:603",
        "reference:562:603",
        "reference:564:603",
        "reference:567:603",
        "reference:568:603",
        "reference:569:603",
        "reference:571:603",
        "reference:572:603",
        "reference:574:603",
        "reference:575:603",
        "reference:576:603",
        "reference:577:603",
        "reference:578:603",
        "reference:579:603",
        "reference:583:603",
        "reference:584:603",
        "reference:586:603",
        "reference:588:603",
        "reference:591:603",
        "reference:592:603",
        "reference:593:603",
        "reference:596:603",
        "reference:599:603",
        "reference:600:603",
        "reference:601:603",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:543:618",
        "reference:604:618",
        "reference:610:618",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:543:624",
        "reference:604:624",
        "reference:617:624",
        "reference:622:624",
        "reference:509:625",
        "reference:516:625",
        "reference:568:625",
        "reference:569:625",
        "reference:571:625",
        "reference:575:625",
        "reference:583:625",
        "reference:591:625",
        "reference:592:625",
        "reference:593:625",
        "reference:596:625",
        "reference:599:625",
        "reference:600:625",
        "reference:601:625",
        "reference:604:625",
        "reference:607:625",
        "reference:609:625",
        "reference:614:625",
        "reference:615:625",
        "reference:617:625",
        "reference:620:625",
        "reference:622:625",
        "reference:623:625",
        "reference:620:626",
        "reference:622:626",
        "reference:623:626",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627",
        "reference:509:629",
        "reference:516:629",
        "reference:568:629",
        "reference:569:629",
        "reference:571:629",
        "reference:575:629",
        "reference:583:629",
        "reference:591:629",
        "reference:592:629",
        "reference:593:629",
        "reference:596:629",
        "reference:599:629",
        "reference:600:629",
        "reference:601:629",
        "reference:604:629",
        "reference:607:629",
        "reference:609:629",
        "reference:614:629",
        "reference:615:629",
        "reference:617:629",
        "reference:618:629",
        "reference:622:629",
        "reference:623:629",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:627:629"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 17,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 629,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        633
      ],
      "contributing_edge_ids": [
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 629,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        633
      ],
      "contributing_edge_ids": [
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 629,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        633
      ],
      "contributing_edge_ids": [
        "reference:629:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 630,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        620
      ],
      "contributing_edge_ids": [
        "reference:620:630"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 630,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        620
      ],
      "contributing_edge_ids": [
        "reference:620:630"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 630,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        620
      ],
      "contributing_edge_ids": [
        "reference:620:630"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 630,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 630,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 630,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 631,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        620
      ],
      "contributing_edge_ids": [
        "reference:620:631"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 631,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        620
      ],
      "contributing_edge_ids": [
        "reference:620:631"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 631,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        620
      ],
      "contributing_edge_ids": [
        "reference:620:631"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 631,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 631,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 631,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 632,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 3,
      "contributing_pr_ids": [
        543,
        622,
        627
      ],
      "contributing_edge_ids": [
        "reference:543:632",
        "reference:622:632",
        "reference:627:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 3,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 632,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 26,
      "contributing_pr_ids": [
        509,
        510,
        516,
        531,
        543,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617,
        622,
        623,
        627
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627",
        "reference:543:632",
        "reference:622:632",
        "reference:627:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 25,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 632,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        275,
        425,
        433,
        442,
        463,
        484,
        493,
        505,
        507,
        509,
        510,
        514,
        516,
        520,
        522,
        523,
        529,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        620,
        622,
        623,
        627
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:433:531",
        "reference:484:531",
        "reference:493:531",
        "reference:507:531",
        "reference:514:531",
        "reference:520:531",
        "reference:522:531",
        "reference:523:531",
        "reference:529:531",
        "reference:510:543",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627",
        "reference:543:632",
        "reference:622:632",
        "reference:627:632"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 15,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 632,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        633
      ],
      "contributing_edge_ids": [
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 632,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        633
      ],
      "contributing_edge_ids": [
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 632,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 1,
      "contributing_pr_ids": [
        633
      ],
      "contributing_edge_ids": [
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 1,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 633,
      "direction": "antecedents",
      "depth": 1,
      "distinct_prs": 6,
      "contributing_pr_ids": [
        543,
        623,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:543:633",
        "reference:623:633",
        "reference:626:633",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 4,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 633,
      "direction": "antecedents",
      "depth": 2,
      "distinct_prs": 32,
      "contributing_pr_ids": [
        509,
        510,
        516,
        543,
        568,
        569,
        571,
        575,
        583,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        604,
        607,
        609,
        614,
        615,
        617,
        618,
        620,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:510:543",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:620:626",
        "reference:622:626",
        "reference:623:626",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627",
        "reference:509:629",
        "reference:516:629",
        "reference:568:629",
        "reference:569:629",
        "reference:571:629",
        "reference:575:629",
        "reference:583:629",
        "reference:591:629",
        "reference:592:629",
        "reference:593:629",
        "reference:596:629",
        "reference:599:629",
        "reference:600:629",
        "reference:601:629",
        "reference:604:629",
        "reference:607:629",
        "reference:609:629",
        "reference:614:629",
        "reference:615:629",
        "reference:617:629",
        "reference:618:629",
        "reference:622:629",
        "reference:623:629",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:627:629",
        "reference:543:632",
        "reference:622:632",
        "reference:627:632",
        "reference:543:633",
        "reference:623:633",
        "reference:626:633",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 8,
      "round_2_sum_neighbor_degree": 59,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 633,
      "direction": "antecedents",
      "depth": 3,
      "distinct_prs": 64,
      "contributing_pr_ids": [
        275,
        425,
        442,
        463,
        484,
        505,
        507,
        509,
        510,
        514,
        516,
        531,
        535,
        543,
        550,
        551,
        552,
        558,
        559,
        561,
        562,
        563,
        564,
        567,
        568,
        569,
        571,
        572,
        574,
        575,
        576,
        577,
        578,
        579,
        582,
        583,
        584,
        586,
        588,
        591,
        592,
        593,
        596,
        599,
        600,
        601,
        603,
        604,
        607,
        609,
        610,
        614,
        615,
        617,
        618,
        620,
        622,
        623,
        624,
        625,
        626,
        627,
        629,
        632
      ],
      "contributing_edge_ids": [
        "reference:463:510",
        "reference:510:543",
        "reference:275:568",
        "reference:484:568",
        "reference:507:568",
        "reference:514:568",
        "reference:531:568",
        "reference:535:568",
        "reference:543:568",
        "reference:550:568",
        "reference:551:568",
        "reference:552:568",
        "reference:558:568",
        "reference:559:568",
        "reference:561:568",
        "reference:562:568",
        "reference:564:568",
        "reference:567:568",
        "reference:425:569",
        "reference:442:569",
        "reference:484:569",
        "reference:505:569",
        "reference:531:569",
        "reference:535:569",
        "reference:543:569",
        "reference:550:569",
        "reference:551:569",
        "reference:552:569",
        "reference:559:569",
        "reference:561:569",
        "reference:563:569",
        "reference:564:569",
        "reference:567:569",
        "reference:568:569",
        "reference:543:571",
        "reference:564:571",
        "reference:568:571",
        "reference:569:571",
        "reference:543:575",
        "reference:567:575",
        "reference:568:575",
        "reference:569:575",
        "reference:571:575",
        "reference:572:575",
        "reference:574:575",
        "reference:535:583",
        "reference:543:583",
        "reference:558:583",
        "reference:567:583",
        "reference:571:583",
        "reference:572:583",
        "reference:575:583",
        "reference:576:583",
        "reference:579:583",
        "reference:582:583",
        "reference:275:591",
        "reference:484:591",
        "reference:507:591",
        "reference:514:591",
        "reference:531:591",
        "reference:535:591",
        "reference:543:591",
        "reference:550:591",
        "reference:551:591",
        "reference:552:591",
        "reference:558:591",
        "reference:559:591",
        "reference:561:591",
        "reference:562:591",
        "reference:564:591",
        "reference:567:591",
        "reference:568:591",
        "reference:569:591",
        "reference:571:591",
        "reference:572:591",
        "reference:574:591",
        "reference:575:591",
        "reference:576:591",
        "reference:577:591",
        "reference:578:591",
        "reference:579:591",
        "reference:582:591",
        "reference:583:591",
        "reference:584:591",
        "reference:586:591",
        "reference:588:591",
        "reference:275:592",
        "reference:484:592",
        "reference:507:592",
        "reference:514:592",
        "reference:531:592",
        "reference:535:592",
        "reference:543:592",
        "reference:550:592",
        "reference:551:592",
        "reference:552:592",
        "reference:558:592",
        "reference:559:592",
        "reference:561:592",
        "reference:562:592",
        "reference:564:592",
        "reference:567:592",
        "reference:568:592",
        "reference:569:592",
        "reference:571:592",
        "reference:572:592",
        "reference:574:592",
        "reference:575:592",
        "reference:576:592",
        "reference:577:592",
        "reference:578:592",
        "reference:579:592",
        "reference:582:592",
        "reference:583:592",
        "reference:584:592",
        "reference:586:592",
        "reference:588:592",
        "reference:591:592",
        "reference:591:593",
        "reference:592:593",
        "reference:596:593",
        "reference:599:593",
        "reference:275:596",
        "reference:484:596",
        "reference:507:596",
        "reference:514:596",
        "reference:531:596",
        "reference:535:596",
        "reference:543:596",
        "reference:550:596",
        "reference:551:596",
        "reference:552:596",
        "reference:558:596",
        "reference:559:596",
        "reference:561:596",
        "reference:562:596",
        "reference:564:596",
        "reference:567:596",
        "reference:568:596",
        "reference:569:596",
        "reference:571:596",
        "reference:572:596",
        "reference:574:596",
        "reference:575:596",
        "reference:576:596",
        "reference:577:596",
        "reference:578:596",
        "reference:579:596",
        "reference:582:596",
        "reference:583:596",
        "reference:584:596",
        "reference:586:596",
        "reference:588:596",
        "reference:591:596",
        "reference:592:596",
        "reference:275:600",
        "reference:484:600",
        "reference:507:600",
        "reference:514:600",
        "reference:531:600",
        "reference:535:600",
        "reference:543:600",
        "reference:550:600",
        "reference:551:600",
        "reference:552:600",
        "reference:558:600",
        "reference:559:600",
        "reference:561:600",
        "reference:562:600",
        "reference:564:600",
        "reference:567:600",
        "reference:568:600",
        "reference:569:600",
        "reference:571:600",
        "reference:572:600",
        "reference:574:600",
        "reference:575:600",
        "reference:576:600",
        "reference:577:600",
        "reference:578:600",
        "reference:579:600",
        "reference:582:600",
        "reference:583:600",
        "reference:584:600",
        "reference:586:600",
        "reference:588:600",
        "reference:591:600",
        "reference:592:600",
        "reference:596:600",
        "reference:275:601",
        "reference:484:601",
        "reference:507:601",
        "reference:514:601",
        "reference:531:601",
        "reference:535:601",
        "reference:543:601",
        "reference:550:601",
        "reference:551:601",
        "reference:552:601",
        "reference:558:601",
        "reference:559:601",
        "reference:561:601",
        "reference:562:601",
        "reference:564:601",
        "reference:567:601",
        "reference:568:601",
        "reference:569:601",
        "reference:571:601",
        "reference:572:601",
        "reference:574:601",
        "reference:575:601",
        "reference:576:601",
        "reference:577:601",
        "reference:578:601",
        "reference:579:601",
        "reference:583:601",
        "reference:584:601",
        "reference:586:601",
        "reference:588:601",
        "reference:591:601",
        "reference:592:601",
        "reference:593:601",
        "reference:596:601",
        "reference:599:601",
        "reference:600:601",
        "reference:509:607",
        "reference:516:607",
        "reference:568:607",
        "reference:569:607",
        "reference:571:607",
        "reference:575:607",
        "reference:583:607",
        "reference:591:607",
        "reference:592:607",
        "reference:593:607",
        "reference:596:607",
        "reference:599:607",
        "reference:600:607",
        "reference:601:607",
        "reference:603:607",
        "reference:604:607",
        "reference:509:609",
        "reference:516:609",
        "reference:568:609",
        "reference:569:609",
        "reference:571:609",
        "reference:575:609",
        "reference:583:609",
        "reference:591:609",
        "reference:592:609",
        "reference:593:609",
        "reference:596:609",
        "reference:599:609",
        "reference:600:609",
        "reference:601:609",
        "reference:603:609",
        "reference:604:609",
        "reference:607:609",
        "reference:509:614",
        "reference:516:614",
        "reference:568:614",
        "reference:569:614",
        "reference:571:614",
        "reference:575:614",
        "reference:583:614",
        "reference:591:614",
        "reference:592:614",
        "reference:593:614",
        "reference:596:614",
        "reference:599:614",
        "reference:600:614",
        "reference:601:614",
        "reference:604:614",
        "reference:607:614",
        "reference:609:614",
        "reference:610:614",
        "reference:509:615",
        "reference:516:615",
        "reference:568:615",
        "reference:569:615",
        "reference:571:615",
        "reference:575:615",
        "reference:583:615",
        "reference:591:615",
        "reference:592:615",
        "reference:593:615",
        "reference:596:615",
        "reference:599:615",
        "reference:600:615",
        "reference:601:615",
        "reference:604:615",
        "reference:607:615",
        "reference:609:615",
        "reference:610:615",
        "reference:614:615",
        "reference:509:617",
        "reference:516:617",
        "reference:568:617",
        "reference:569:617",
        "reference:571:617",
        "reference:575:617",
        "reference:583:617",
        "reference:591:617",
        "reference:592:617",
        "reference:593:617",
        "reference:596:617",
        "reference:599:617",
        "reference:600:617",
        "reference:601:617",
        "reference:604:617",
        "reference:607:617",
        "reference:609:617",
        "reference:610:617",
        "reference:614:617",
        "reference:615:617",
        "reference:543:618",
        "reference:604:618",
        "reference:610:618",
        "reference:509:622",
        "reference:516:622",
        "reference:531:622",
        "reference:568:622",
        "reference:569:622",
        "reference:571:622",
        "reference:575:622",
        "reference:583:622",
        "reference:591:622",
        "reference:592:622",
        "reference:593:622",
        "reference:596:622",
        "reference:599:622",
        "reference:600:622",
        "reference:601:622",
        "reference:604:622",
        "reference:607:622",
        "reference:609:622",
        "reference:614:622",
        "reference:615:622",
        "reference:617:622",
        "reference:509:623",
        "reference:516:623",
        "reference:568:623",
        "reference:569:623",
        "reference:571:623",
        "reference:575:623",
        "reference:583:623",
        "reference:591:623",
        "reference:592:623",
        "reference:593:623",
        "reference:596:623",
        "reference:599:623",
        "reference:600:623",
        "reference:601:623",
        "reference:604:623",
        "reference:607:623",
        "reference:609:623",
        "reference:614:623",
        "reference:615:623",
        "reference:617:623",
        "reference:620:623",
        "reference:622:623",
        "reference:543:624",
        "reference:604:624",
        "reference:617:624",
        "reference:622:624",
        "reference:509:625",
        "reference:516:625",
        "reference:568:625",
        "reference:569:625",
        "reference:571:625",
        "reference:575:625",
        "reference:583:625",
        "reference:591:625",
        "reference:592:625",
        "reference:593:625",
        "reference:596:625",
        "reference:599:625",
        "reference:600:625",
        "reference:601:625",
        "reference:604:625",
        "reference:607:625",
        "reference:609:625",
        "reference:614:625",
        "reference:615:625",
        "reference:617:625",
        "reference:620:625",
        "reference:622:625",
        "reference:623:625",
        "reference:620:626",
        "reference:622:626",
        "reference:623:626",
        "reference:543:627",
        "reference:622:627",
        "reference:623:627",
        "reference:509:629",
        "reference:516:629",
        "reference:568:629",
        "reference:569:629",
        "reference:571:629",
        "reference:575:629",
        "reference:583:629",
        "reference:591:629",
        "reference:592:629",
        "reference:593:629",
        "reference:596:629",
        "reference:599:629",
        "reference:600:629",
        "reference:601:629",
        "reference:604:629",
        "reference:607:629",
        "reference:609:629",
        "reference:614:629",
        "reference:615:629",
        "reference:617:629",
        "reference:618:629",
        "reference:622:629",
        "reference:623:629",
        "reference:624:629",
        "reference:625:629",
        "reference:626:629",
        "reference:627:629",
        "reference:543:632",
        "reference:622:632",
        "reference:627:632",
        "reference:543:633",
        "reference:623:633",
        "reference:626:633",
        "reference:627:633",
        "reference:629:633",
        "reference:632:633"
      ],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 14,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 633,
      "direction": "successors",
      "depth": 1,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 633,
      "direction": "successors",
      "depth": 2,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": 0,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    },
    {
      "specification": "URL + shorthand body",
      "pr": 633,
      "direction": "successors",
      "depth": 3,
      "distinct_prs": 0,
      "contributing_pr_ids": [],
      "contributing_edge_ids": [],
      "input_ledger": "reference_occurrences.csv; nonself in-census body URL + PR shorthand",
      "distinct_author_accounts": 0,
      "round_2_sum_neighbor_degree": null,
      "aggregation_caveat": "Reach counts distinct nonself nodes; round-2 neighbor-degree sum counts walks and may revisit nodes. Edge IDs identify traversable steps within the horizon, including possible revisits."
    }
  ]
}