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      "columns": [
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      "columns": [
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        "winning_asset_id",
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      "columns": [
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      "columns": [
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        "timestamp",
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      "max_sequence": 310185424415673533,
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      "sha256": "66aaeb0bb5eb1ff204f457bd14393f028667e36a4c49fc3244be0aaf51a25525"
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    "tick_size_change": {
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      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
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        "asset_id",
        "old_tick_size",
        "new_tick_size",
        "witness_set",
        "arrival_skew",
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      "max_sequence": 310185424414500566,
      "min_sequence": 562951783387189,
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      ],
      "row_count": 3644,
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    }
  },
  "row_count": 120472831,
  "sequence_note": "sequence and timestamp_received are collector-local provenance; where domains carry the same row, the merge keeps the EARLIEST-RECEIVED copy, equal arrivals breaking by registry order (active: c, h, f, g, i, k). The winner is per row, not per hour -- each row names its own in source_witness",
  "sha256": "5e7c233d65934fdba5a26fae6ad0ccf07beb105a89ef5ff1e54843810cd4e98f",
  "verification": {
    "note": "A range digest certifies BYTES. That those bytes are that product comes from this manifest and is cross-checkable against the Parquet footer, which is inside the whole-file sha256.",
    "primary": "sha256sum <file> == .sha256",
    "secondary": "curl -r <start>-<end-1> <url> | sha256sum == .products.<name>.sha256"
  },
  "witness_stats": "2026-09-23T11.witness_stats.json",
  "witnesses": "chfgik",
  "served_verbatim": true,
  "served_note": "This hour is the merger's union file, published byte for byte. Hours before the era cutover are rebuilt here from the seven product files and carry one column fewer."
}
