{
 "bytes": 948792764,
 "derived_from": {
  "note": "Built by pendulumflow from its own canonical seven-file hour, which is unmodified and remains the source of record. Not upstream data.",
  "prefix": "merged-live/2026-08-19/21/",
  "products": {
   "best_bid_ask": {
    "sha256": "ea3395d9480deb44d69bc16ce88aad9f1384f9e501e4485a35092e9a9ab362bc"
   },
   "book": {
    "sha256": "7e04f6f31176ab3cb26ea41703b2d12303cddf2069ab8fb484afbf355d1cdeb3"
   },
   "last_trade_price": {
    "sha256": "da286caf5a7cde05f8a9745f999e66eeb7e3cbaf520a2de616c6219cfcb58ec3"
   },
   "market_resolved": {
    "sha256": "7ca4d41aa17434f2c4cd9415aaaa4fd1ea15e5ab3cabcc979266d0aba7442331"
   },
   "new_market": {
    "sha256": "25f33284a471a99d8ee598b52ee000150e982764e999b6a091a1864d1bf6b609"
   },
   "price_change": {
    "sha256": "b34e3e529f6c140fe0debca38ac85b68263c498a4ec176e97fe71f3b3bf016e6"
   },
   "tick_size_change": {
    "sha256": "74349059af2ddf8140c7bb43a4a157a847db9f3fe42a441155b92a0b033de96e"
   }
  },
  "source_manifest": {
   "ab_accounting": {
    "best_bid_ask": {
     "boundary_dropped": 96,
     "rows_a": 8293291,
     "rows_b": 5976504,
     "rows_common": 5975336,
     "rows_merged": 8294363,
     "rows_only_a": 2317955,
     "rows_only_b": 1168
    },
    "book": {
     "boundary_dropped": 14,
     "rows_a": 222644,
     "rows_b": 1949387,
     "rows_common": 149854,
     "rows_merged": 2022163,
     "rows_only_a": 72790,
     "rows_only_b": 1799533
    },
    "last_trade_price": {
     "boundary_dropped": 0,
     "rows_a": 98446,
     "rows_b": 68424,
     "rows_common": 68112,
     "rows_merged": 98758,
     "rows_only_a": 30334,
     "rows_only_b": 312
    },
    "market_resolved": {
     "boundary_dropped": 0,
     "rows_a": 1222,
     "rows_b": 2202,
     "rows_common": 937,
     "rows_merged": 2487,
     "rows_only_a": 285,
     "rows_only_b": 1265
    },
    "new_market": {
     "boundary_dropped": 0,
     "rows_a": 500,
     "rows_b": 829,
     "rows_common": 425,
     "rows_merged": 904,
     "rows_only_a": 75,
     "rows_only_b": 404
    },
    "price_change": {
     "boundary_dropped": 262,
     "rows_a": 97627238,
     "rows_b": 70119159,
     "rows_common": 70085687,
     "rows_merged": 97660448,
     "rows_only_a": 27541551,
     "rows_only_b": 33472
    },
    "tick_size_change": {
     "boundary_dropped": 0,
     "rows_a": 2220,
     "rows_b": 1488,
     "rows_common": 1488,
     "rows_merged": 2220,
     "rows_only_a": 732,
     "rows_only_b": 0
    }
   },
   "archive_root": "merged-live",
   "boundary_guard": "cache",
   "files": {
    "best_bid_ask": {
     "byte_size": 78890473,
     "columns": [
      "timestamp_received",
      "sequence",
      "timestamp",
      "market",
      "asset_id",
      "best_bid",
      "best_ask",
      "spread"
     ],
     "file": "2026-08-19/21/best_bid_ask.parquet",
     "max_sequence": 20829150376415709,
     "min_sequence": 11258999136633885,
     "order_by": [
      "market",
      "asset_id",
      "timestamp",
      "sequence"
     ],
     "row_count": 8294363,
     "sha256": "ea3395d9480deb44d69bc16ce88aad9f1384f9e501e4485a35092e9a9ab362bc"
    },
    "book": {
     "byte_size": 86917321,
     "columns": [
      "timestamp_received",
      "sequence",
      "timestamp",
      "market",
      "asset_id",
      "bids",
      "asks"
     ],
     "file": "2026-08-19/21/book.parquet",
     "max_sequence": 20829150376415291,
     "min_sequence": 11258999136635657,
     "order_by": [
      "market",
      "asset_id",
      "timestamp",
      "sequence"
     ],
     "row_count": 2022163,
     "sha256": "7e04f6f31176ab3cb26ea41703b2d12303cddf2069ab8fb484afbf355d1cdeb3"
    },
    "last_trade_price": {
     "byte_size": 4857515,
     "columns": [
      "timestamp_received",
      "sequence",
      "timestamp",
      "market",
      "asset_id",
      "price",
      "size",
      "side",
      "fee_rate_bps",
      "transaction_hash"
     ],
     "file": "2026-08-19/21/last_trade_price.parquet",
     "max_sequence": 20829150376415030,
     "min_sequence": 11258999136634237,
     "order_by": [
      "market",
      "asset_id",
      "timestamp",
      "sequence"
     ],
     "row_count": 98758,
     "sha256": "da286caf5a7cde05f8a9745f999e66eeb7e3cbaf520a2de616c6219cfcb58ec3"
    },
    "market_resolved": {
     "byte_size": 191189,
     "columns": [
      "timestamp_received",
      "sequence",
      "timestamp",
      "market",
      "id",
      "assets_ids",
      "winning_asset_id",
      "winning_outcome"
     ],
     "file": "2026-08-19/21/market_resolved.parquet",
     "max_sequence": 20829150374885365,
     "min_sequence": 11258999137595981,
     "order_by": [
      "market",
      "id",
      "timestamp",
      "sequence"
     ],
     "row_count": 2487,
     "sha256": "7ca4d41aa17434f2c4cd9415aaaa4fd1ea15e5ab3cabcc979266d0aba7442331"
    },
    "new_market": {
     "byte_size": 74016,
     "columns": [
      "timestamp_received",
      "sequence",
      "timestamp",
      "market",
      "id",
      "assets_ids",
      "outcomes",
      "question",
      "slug"
     ],
     "file": "2026-08-19/21/new_market.parquet",
     "max_sequence": 20829150369565615,
     "min_sequence": 11258999137162684,
     "order_by": [
      "market",
      "id",
      "timestamp",
      "sequence"
     ],
     "row_count": 904,
     "sha256": "25f33284a471a99d8ee598b52ee000150e982764e999b6a091a1864d1bf6b609"
    },
    "price_change": {
     "byte_size": 793515937,
     "columns": [
      "timestamp_received",
      "sequence",
      "timestamp",
      "market",
      "asset_id",
      "price",
      "size",
      "side",
      "best_bid",
      "best_ask"
     ],
     "file": "2026-08-19/21/price_change.parquet",
     "max_sequence": 20829150376415725,
     "min_sequence": 11258999136633889,
     "order_by": [
      "market",
      "asset_id",
      "timestamp",
      "sequence"
     ],
     "row_count": 97660448,
     "sha256": "b34e3e529f6c140fe0debca38ac85b68263c498a4ec176e97fe71f3b3bf016e6"
    },
    "tick_size_change": {
     "byte_size": 67573,
     "columns": [
      "timestamp_received",
      "sequence",
      "timestamp",
      "market",
      "asset_id",
      "old_tick_size",
      "new_tick_size"
     ],
     "file": "2026-08-19/21/tick_size_change.parquet",
     "max_sequence": 20829150343315341,
     "min_sequence": 11258999138626115,
     "order_by": [
      "market",
      "asset_id",
      "timestamp",
      "sequence"
     ],
     "row_count": 2220,
     "sha256": "74349059af2ddf8140c7bb43a4a157a847db9f3fe42a441155b92a0b033de96e"
    }
   },
   "generated_by": "tools/orderbook_ab/merge_ab.py",
   "hour_utc": "2026-08-19T21:00:00+00:00",
   "max_sequence": 20829150376415725,
   "min_sequence": 11258999136633885,
   "row_count": 108081343,
   "sequence_note": "sequence and timestamp_received are collector-local provenance; common rows carry domain B's values",
   "witnesses": "ab"
  }
 },
 "file": "2026-08-19T21.parquet",
 "hour": "2026-08-19/21",
 "layout": "union-event-sorted-v1",
 "products": {
  "best_bid_ask": {
   "byte_range": [
    4,
    78989456
   ],
   "columns": [
    "timestamp_received",
    "sequence",
    "timestamp",
    "market",
    "asset_id",
    "best_bid",
    "best_ask",
    "spread"
   ],
   "max_sequence": 20829150376415709,
   "min_sequence": 11258999136633885,
   "order_by": [
    "market",
    "asset_id",
    "timestamp",
    "sequence"
   ],
   "row_count": 8294363,
   "row_groups": [
    0,
    31
   ],
   "sha256": "e80e463c836471c8f7933e306423d6c5bf76e897eaef8e035b6e0892d68e3e78"
  },
  "book": {
   "byte_range": [
    78989456,
    170074214
   ],
   "columns": [
    "timestamp_received",
    "sequence",
    "timestamp",
    "market",
    "asset_id",
    "bids",
    "asks"
   ],
   "max_sequence": 20829150376415291,
   "min_sequence": 11258999136635657,
   "order_by": [
    "market",
    "asset_id",
    "timestamp",
    "sequence"
   ],
   "row_count": 2022163,
   "row_groups": [
    32,
    39
   ],
   "sha256": "80437a12eeab284fc9dcd92ea8b6a2c42be96611d6dddb1d629db19607bbe31b"
  },
  "last_trade_price": {
   "byte_range": [
    170074214,
    175073006
   ],
   "columns": [
    "timestamp_received",
    "sequence",
    "timestamp",
    "market",
    "asset_id",
    "price",
    "size",
    "side",
    "fee_rate_bps",
    "transaction_hash"
   ],
   "max_sequence": 20829150376415030,
   "min_sequence": 11258999136634237,
   "order_by": [
    "market",
    "asset_id",
    "timestamp",
    "sequence"
   ],
   "row_count": 98758,
   "row_groups": [
    40,
    40
   ],
   "sha256": "437904e0cf835e52a1fa5eda14d5c213d5b1cf998450425080fd31f5b9606489"
  },
  "market_resolved": {
   "byte_range": [
    175073006,
    175278014
   ],
   "columns": [
    "timestamp_received",
    "sequence",
    "timestamp",
    "market",
    "id",
    "assets_ids",
    "winning_asset_id",
    "winning_outcome"
   ],
   "max_sequence": 20829150374885365,
   "min_sequence": 11258999137595981,
   "order_by": [
    "market",
    "id",
    "timestamp",
    "sequence"
   ],
   "row_count": 2487,
   "row_groups": [
    41,
    41
   ],
   "sha256": "d46dc1128120baa7cb76190f279817a110d03f008042697d0b91940430e40573"
  },
  "new_market": {
   "byte_range": [
    175278014,
    175355416
   ],
   "columns": [
    "timestamp_received",
    "sequence",
    "timestamp",
    "market",
    "id",
    "assets_ids",
    "outcomes",
    "question",
    "slug"
   ],
   "max_sequence": 20829150369565615,
   "min_sequence": 11258999137162684,
   "order_by": [
    "market",
    "id",
    "timestamp",
    "sequence"
   ],
   "row_count": 904,
   "row_groups": [
    42,
    42
   ],
   "sha256": "9cd95b5e33a54abdc99d140216a1d8885cce4218d016be00a6042671b9ddcec1"
  },
  "price_change": {
   "byte_range": [
    175355416,
    947624827
   ],
   "columns": [
    "timestamp_received",
    "sequence",
    "timestamp",
    "market",
    "asset_id",
    "best_bid",
    "best_ask",
    "price",
    "size",
    "side"
   ],
   "max_sequence": 20829150376415725,
   "min_sequence": 11258999136633889,
   "order_by": [
    "market",
    "asset_id",
    "timestamp",
    "sequence"
   ],
   "row_count": 97660448,
   "row_groups": [
    43,
    415
   ],
   "sha256": "af9e303e412756957a398734f7f15a78bf2de86a19e060f8d47693ee99bf41ca"
  },
  "tick_size_change": {
   "byte_range": [
    947624827,
    947700994
   ],
   "columns": [
    "timestamp_received",
    "sequence",
    "timestamp",
    "market",
    "asset_id",
    "old_tick_size",
    "new_tick_size"
   ],
   "max_sequence": 20829150343315341,
   "min_sequence": 11258999138626115,
   "order_by": [
    "market",
    "asset_id",
    "timestamp",
    "sequence"
   ],
   "row_count": 2220,
   "row_groups": [
    416,
    416
   ],
   "sha256": "e19e85e0bf8613470dd11016c77d96efdb6f4beccf0fa3ecf596ed456e903868"
  }
 },
 "row_count": 108081343,
 "sha256": "3e60e330495ab8cbacab42596b344a9dbe1bcd3959223fd51abf6bc93f681c3e",
 "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"
 }
}