{
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  "bytes": 1074164655,
  "file": "2026-08-27T20.parquet",
  "generated_by": "tools/orderbook_ab/merge_ab.py",
  "hour": "2026-08-27/20",
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        "price",
        "size",
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        "sequence",
        "timestamp",
        "market",
        "id",
        "assets_ids",
        "winning_asset_id",
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        "witness_set",
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      "columns": [
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        "sequence",
        "timestamp",
        "market",
        "id",
        "assets_ids",
        "outcomes",
        "question",
        "slug",
        "witness_set",
        "arrival_skew",
        "source_witness"
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      "max_sequence": 126382264596983220,
      "min_sequence": 281476363750230,
      "order_by": [
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        "id",
        "timestamp",
        "sequence"
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      "row_groups": [
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      "sha256": "5f95fe03633abf6409a34ea7e3c88b5070424c183153003013e29f0709a62df0"
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      "columns": [
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        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "price",
        "size",
        "side",
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        "best_ask",
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        "source_witness"
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      "max_sequence": 126382264604350017,
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      "order_by": [
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        "timestamp",
        "sequence"
      ],
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      "sha256": "6ed366a3a154460140fb2e001cb77ac7479f066a64d45240135bc369fe340ccd"
    },
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      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "old_tick_size",
        "new_tick_size",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 49821071899405911,
      "min_sequence": 281476366416242,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 4200,
      "row_groups": [
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      ],
      "sha256": "a758863aed89b7b200beccab68623804bf59c110ff4a64f62ab15ebcfcba5356"
    }
  },
  "row_count": 96952534,
  "sequence_note": "sequence and timestamp_received are collector-local provenance; where domains carry the same row, the merge keeps the LAST ACTIVE domain's values -- for this hour, domain e (active: a, b, c, h, e)",
  "sha256": "fc74362487c2321c708a1d4527a714bacc0d5483cdea8d4013ee071a864a218f",
  "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"
  },
  "witnesses": "abche",
  "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."
}