{
  "ab_accounting": {
    "best_bid_ask": {
      "boundary_dropped": 16,
      "class": "PARTIAL",
      "exception_markets": 47450,
      "rows_by_domain": {
        "c": 0,
        "g": 0,
        "h": 10807895,
        "i": 10807930,
        "k": 10807944
      },
      "rows_c": 0,
      "rows_g": 0,
      "rows_h": 10807895,
      "rows_i": 10807930,
      "rows_joined": 10808973,
      "rows_k": 10807944,
      "rows_merged": 10808957,
      "unique_by_domain": {
        "c": 0,
        "g": 0,
        "h": 106,
        "i": 126,
        "k": 123
      },
      "witness_latency": {
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 160,
            "1000_2000ms": 3631,
            "100_200ms": 77995,
            "10_20ms": 8213840,
            "1_2ms": 0,
            "2000_5000ms": 3483,
            "200_500ms": 35980,
            "20_50ms": 2218175,
            "2_5ms": 0,
            "5000_10000ms": 1126,
            "500_1000ms": 12084,
            "50_100ms": 241297,
            "5_10ms": 0,
            "ge30000ms": 124,
            "neg": 0
          },
          "max_ms": 42543,
          "mean_ms": 25.636345745401858,
          "measurable": 10807895,
          "min_ms": 14,
          "p50_ms": 18.0,
          "p90_ms": 25.0,
          "p99_ms": 119.0,
          "rows": 10807895,
          "unmeasurable": 0,
          "won_output_rows": 593823
        },
        "i": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 2272,
            "100_200ms": 69570,
            "10_20ms": 353684,
            "1_2ms": 0,
            "2000_5000ms": 879,
            "200_500ms": 20985,
            "20_50ms": 10115019,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 3770,
            "50_100ms": 241751,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 4150,
          "mean_ms": 26.32781985079474,
          "measurable": 10807930,
          "min_ms": 17,
          "p50_ms": 23.0,
          "p90_ms": 28.0,
          "p99_ms": 94.0,
          "rows": 10807930,
          "unmeasurable": 0,
          "won_output_rows": 185634
        },
        "k": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 522,
            "100_200ms": 55402,
            "10_20ms": 9894420,
            "1_2ms": 0,
            "2000_5000ms": 88,
            "200_500ms": 24558,
            "20_50ms": 662386,
            "2_5ms": 0,
            "5000_10000ms": 12,
            "500_1000ms": 2603,
            "50_100ms": 166157,
            "5_10ms": 1796,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 9234,
          "mean_ms": 15.867144204300097,
          "measurable": 10807944,
          "min_ms": 9,
          "p50_ms": 12.0,
          "p90_ms": 18.0,
          "p99_ms": 84.0,
          "rows": 10807944,
          "unmeasurable": 0,
          "won_output_rows": 10029500
        }
      }
    },
    "book": {
      "boundary_dropped": 0,
      "class": "PARTIAL",
      "exception_markets": 9066,
      "rows_by_domain": {
        "c": 0,
        "g": 0,
        "h": 109075,
        "i": 105388,
        "k": 110632
      },
      "rows_c": 0,
      "rows_g": 0,
      "rows_h": 109075,
      "rows_i": 105388,
      "rows_joined": 117668,
      "rows_k": 110632,
      "rows_merged": 117668,
      "unique_by_domain": {
        "c": 0,
        "g": 0,
        "h": 4950,
        "i": 1244,
        "k": 6706
      },
      "witness_latency": {
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 348,
            "1000_2000ms": 357,
            "100_200ms": 2860,
            "10_20ms": 19671,
            "1_2ms": 0,
            "2000_5000ms": 612,
            "200_500ms": 1753,
            "20_50ms": 71869,
            "2_5ms": 0,
            "5000_10000ms": 176,
            "500_1000ms": 393,
            "50_100ms": 6072,
            "5_10ms": 0,
            "ge30000ms": 4964,
            "neg": 0
          },
          "max_ms": 8714274121,
          "mean_ms": 12438526.801017648,
          "measurable": 109075,
          "min_ms": 15,
          "p50_ms": 22.0,
          "p90_ms": 110.0,
          "p99_ms": 221320106.0,
          "rows": 109075,
          "unmeasurable": 0,
          "won_output_rows": 16576
        },
        "i": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 114,
            "1000_2000ms": 414,
            "100_200ms": 3332,
            "10_20ms": 415,
            "1_2ms": 0,
            "2000_5000ms": 480,
            "200_500ms": 2698,
            "20_50ms": 87295,
            "2_5ms": 0,
            "5000_10000ms": 78,
            "500_1000ms": 842,
            "50_100ms": 7988,
            "5_10ms": 0,
            "ge30000ms": 1732,
            "neg": 0
          },
          "max_ms": 8714349282,
          "mean_ms": 5056882.4179033665,
          "measurable": 105388,
          "min_ms": 17,
          "p50_ms": 25.0,
          "p90_ms": 88.0,
          "p99_ms": 8271735.720000094,
          "rows": 105388,
          "unmeasurable": 0,
          "won_output_rows": 7583
        },
        "k": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 448,
            "1000_2000ms": 286,
            "100_200ms": 2231,
            "10_20ms": 76472,
            "1_2ms": 0,
            "2000_5000ms": 648,
            "200_500ms": 1511,
            "20_50ms": 17801,
            "2_5ms": 0,
            "5000_10000ms": 240,
            "500_1000ms": 189,
            "50_100ms": 4462,
            "5_10ms": 0,
            "ge30000ms": 6344,
            "neg": 0
          },
          "max_ms": 8719247838,
          "mean_ms": 16145152.14308699,
          "measurable": 110632,
          "min_ms": 10,
          "p50_ms": 16.0,
          "p90_ms": 121.90000000000873,
          "p99_ms": 321154759.0,
          "rows": 110632,
          "unmeasurable": 0,
          "won_output_rows": 93509
        }
      }
    },
    "last_trade_price": {
      "boundary_dropped": 0,
      "class": "PARTIAL",
      "exception_markets": 3096,
      "rows_by_domain": {
        "c": 0,
        "g": 0,
        "h": 51095,
        "i": 51126,
        "k": 51071
      },
      "rows_c": 0,
      "rows_g": 0,
      "rows_h": 51095,
      "rows_i": 51126,
      "rows_joined": 51301,
      "rows_k": 51071,
      "rows_merged": 51301,
      "unique_by_domain": {
        "c": 0,
        "g": 0,
        "h": 2,
        "i": 10,
        "k": 4
      },
      "witness_latency": {
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 39,
            "100_200ms": 1423,
            "10_20ms": 27222,
            "1_2ms": 0,
            "2000_5000ms": 8,
            "200_500ms": 883,
            "20_50ms": 18848,
            "2_5ms": 0,
            "5000_10000ms": 4,
            "500_1000ms": 188,
            "50_100ms": 2480,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 8009,
          "mean_ms": 35.822526666014284,
          "measurable": 51095,
          "min_ms": 15,
          "p50_ms": 19.0,
          "p90_ms": 49.0,
          "p99_ms": 334.0,
          "rows": 51095,
          "unmeasurable": 0,
          "won_output_rows": 4732
        },
        "i": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 73,
            "100_200ms": 1570,
            "10_20ms": 551,
            "1_2ms": 0,
            "2000_5000ms": 3,
            "200_500ms": 1433,
            "20_50ms": 44232,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 431,
            "50_100ms": 2833,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 3771,
          "mean_ms": 47.12130814067206,
          "measurable": 51126,
          "min_ms": 18,
          "p50_ms": 24.0,
          "p90_ms": 64.0,
          "p99_ms": 496.0,
          "rows": 51126,
          "unmeasurable": 0,
          "won_output_rows": 1719
        },
        "k": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 2,
            "100_200ms": 1059,
            "10_20ms": 42187,
            "1_2ms": 0,
            "2000_5000ms": 1,
            "200_500ms": 749,
            "20_50ms": 4991,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 77,
            "50_100ms": 2005,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 2445,
          "mean_ms": 24.736269115545024,
          "measurable": 51071,
          "min_ms": 10,
          "p50_ms": 13.0,
          "p90_ms": 36.0,
          "p99_ms": 256.0,
          "rows": 51071,
          "unmeasurable": 0,
          "won_output_rows": 44850
        }
      }
    },
    "market_resolved": {
      "boundary_dropped": 0,
      "class": "PARTIAL",
      "exception_markets": 683,
      "rows_by_domain": {
        "c": 0,
        "g": 0,
        "h": 683,
        "i": 683,
        "k": 683
      },
      "rows_c": 0,
      "rows_g": 0,
      "rows_h": 683,
      "rows_i": 683,
      "rows_joined": 710,
      "rows_k": 683,
      "rows_merged": 710,
      "unique_by_domain": {
        "c": 0,
        "g": 0,
        "h": 0,
        "i": 13,
        "k": 14
      },
      "witness_latency": {
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 33,
            "1000_2000ms": 0,
            "100_200ms": 9,
            "10_20ms": 381,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 1,
            "20_50ms": 165,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 58,
            "5_10ms": 0,
            "ge30000ms": 36,
            "neg": 0
          },
          "max_ms": 58647,
          "mean_ms": 3299.5944363103954,
          "measurable": 683,
          "min_ms": 16,
          "p50_ms": 19.0,
          "p90_ms": 11794.400000000976,
          "p99_ms": 52213.079999999994,
          "rows": 683,
          "unmeasurable": 0,
          "won_output_rows": 35
        },
        "i": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 33,
            "1000_2000ms": 0,
            "100_200ms": 12,
            "10_20ms": 1,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 3,
            "20_50ms": 480,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 1,
            "50_100ms": 104,
            "5_10ms": 0,
            "ge30000ms": 49,
            "neg": 0
          },
          "max_ms": 57786,
          "mean_ms": 4273.222547584188,
          "measurable": 683,
          "min_ms": 19,
          "p50_ms": 24.0,
          "p90_ms": 22284.8,
          "p99_ms": 57460.079999999994,
          "rows": 683,
          "unmeasurable": 0,
          "won_output_rows": 95
        },
        "k": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 31,
            "1000_2000ms": 0,
            "100_200ms": 6,
            "10_20ms": 475,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 0,
            "20_50ms": 127,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 20,
            "5_10ms": 0,
            "ge30000ms": 24,
            "neg": 0
          },
          "max_ms": 55329,
          "mean_ms": 2543.626647144949,
          "measurable": 683,
          "min_ms": 10,
          "p50_ms": 13.0,
          "p90_ms": 65.60000000000014,
          "p99_ms": 41358.26,
          "rows": 683,
          "unmeasurable": 0,
          "won_output_rows": 580
        }
      }
    },
    "new_market": {
      "boundary_dropped": 0,
      "class": "PARTIAL",
      "exception_markets": 605,
      "rows_by_domain": {
        "c": 0,
        "g": 0,
        "h": 605,
        "i": 605,
        "k": 605
      },
      "rows_c": 0,
      "rows_g": 0,
      "rows_h": 605,
      "rows_i": 605,
      "rows_joined": 823,
      "rows_k": 605,
      "rows_merged": 823,
      "unique_by_domain": {
        "c": 0,
        "g": 0,
        "h": 82,
        "i": 61,
        "k": 75
      },
      "witness_latency": {
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 51,
            "1000_2000ms": 0,
            "100_200ms": 134,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 81,
            "20_50ms": 164,
            "2_5ms": 0,
            "5000_10000ms": 7,
            "500_1000ms": 0,
            "50_100ms": 99,
            "5_10ms": 0,
            "ge30000ms": 69,
            "neg": 0
          },
          "max_ms": 86990,
          "mean_ms": 6245.887603305785,
          "measurable": 605,
          "min_ms": 20,
          "p50_ms": 125.0,
          "p90_ms": 32082.600000000006,
          "p99_ms": 52124.28000000011,
          "rows": 605,
          "unmeasurable": 0,
          "won_output_rows": 260
        },
        "i": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 33,
            "1000_2000ms": 0,
            "100_200ms": 171,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 48,
            "20_50ms": 121,
            "2_5ms": 0,
            "5000_10000ms": 8,
            "500_1000ms": 0,
            "50_100ms": 161,
            "5_10ms": 0,
            "ge30000ms": 63,
            "neg": 0
          },
          "max_ms": 99094,
          "mean_ms": 5268.135537190083,
          "measurable": 605,
          "min_ms": 25,
          "p50_ms": 107.0,
          "p90_ms": 31255.000000000007,
          "p99_ms": 44594.560000000114,
          "rows": 605,
          "unmeasurable": 0,
          "won_output_rows": 241
        },
        "k": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 36,
            "1000_2000ms": 0,
            "100_200ms": 108,
            "10_20ms": 13,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 63,
            "20_50ms": 199,
            "2_5ms": 0,
            "5000_10000ms": 7,
            "500_1000ms": 0,
            "50_100ms": 116,
            "5_10ms": 0,
            "ge30000ms": 63,
            "neg": 0
          },
          "max_ms": 98343,
          "mean_ms": 5482.196694214876,
          "measurable": 605,
          "min_ms": 15,
          "p50_ms": 82.0,
          "p90_ms": 31394.800000000014,
          "p99_ms": 47472.240000000165,
          "rows": 605,
          "unmeasurable": 0,
          "won_output_rows": 322
        }
      }
    },
    "price_change": {
      "boundary_dropped": 116,
      "class": "PARTIAL",
      "exception_markets": 87836,
      "rows_by_domain": {
        "c": 0,
        "g": 0,
        "h": 93703198,
        "i": 93680918,
        "k": 93715710
      },
      "rows_c": 0,
      "rows_g": 0,
      "rows_h": 93703198,
      "rows_i": 93680918,
      "rows_joined": 93763712,
      "rows_k": 93715710,
      "rows_merged": 93763596,
      "unique_by_domain": {
        "c": 0,
        "g": 0,
        "h": 6902,
        "i": 6340,
        "k": 21918
      },
      "witness_latency": {
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 1364,
            "1000_2000ms": 32770,
            "100_200ms": 1019758,
            "10_20ms": 66998792,
            "1_2ms": 0,
            "2000_5000ms": 23762,
            "200_500ms": 511432,
            "20_50ms": 22332902,
            "2_5ms": 0,
            "5000_10000ms": 8626,
            "500_1000ms": 123002,
            "50_100ms": 2650242,
            "5_10ms": 0,
            "ge30000ms": 548,
            "neg": 0
          },
          "max_ms": 42543,
          "mean_ms": 27.007329611098225,
          "measurable": 93703198,
          "min_ms": 14,
          "p50_ms": 18.0,
          "p90_ms": 29.0,
          "p99_ms": 161.0,
          "rows": 93703198,
          "unmeasurable": 0,
          "won_output_rows": 5880496
        },
        "i": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 29610,
            "100_200ms": 991376,
            "10_20ms": 2540256,
            "1_2ms": 0,
            "2000_5000ms": 8278,
            "200_500ms": 494278,
            "20_50ms": 86629720,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 161746,
            "50_100ms": 2825654,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 4161,
          "mean_ms": 29.5119707943084,
          "measurable": 93680918,
          "min_ms": 17,
          "p50_ms": 23.0,
          "p90_ms": 31.0,
          "p99_ms": 156.0,
          "rows": 93680918,
          "unmeasurable": 0,
          "won_output_rows": 1941318
        },
        "k": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 4088,
            "100_200ms": 728608,
            "10_20ms": 83885058,
            "1_2ms": 0,
            "2000_5000ms": 790,
            "200_500ms": 303778,
            "20_50ms": 6826710,
            "2_5ms": 0,
            "5000_10000ms": 238,
            "500_1000ms": 27854,
            "50_100ms": 1933864,
            "5_10ms": 4722,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 9235,
          "mean_ms": 17.13802814917584,
          "measurable": 93715710,
          "min_ms": 9,
          "p50_ms": 12.0,
          "p90_ms": 20.0,
          "p99_ms": 108.0,
          "rows": 93715710,
          "unmeasurable": 0,
          "won_output_rows": 85941782
        }
      }
    },
    "tick_size_change": {
      "boundary_dropped": 0,
      "class": "PARTIAL",
      "exception_markets": 911,
      "rows_by_domain": {
        "c": 0,
        "g": 0,
        "h": 3644,
        "i": 3644,
        "k": 3644
      },
      "rows_c": 0,
      "rows_g": 0,
      "rows_h": 3644,
      "rows_i": 3644,
      "rows_joined": 3644,
      "rows_k": 3644,
      "rows_merged": 3644,
      "unique_by_domain": {
        "c": 0,
        "g": 0,
        "h": 0,
        "i": 0,
        "k": 0
      },
      "witness_latency": {
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 8,
            "10_20ms": 2891,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 4,
            "20_50ms": 677,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 64,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 300,
          "mean_ms": 20.475850713501647,
          "measurable": 3644,
          "min_ms": 15,
          "p50_ms": 18.0,
          "p90_ms": 22.0,
          "p99_ms": 65.0,
          "rows": 3644,
          "unmeasurable": 0,
          "won_output_rows": 163
        },
        "i": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 8,
            "10_20ms": 137,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 16,
            "20_50ms": 3393,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 90,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 334,
          "mean_ms": 25.363885839736554,
          "measurable": 3644,
          "min_ms": 18,
          "p50_ms": 23.0,
          "p90_ms": 27.0,
          "p99_ms": 84.0,
          "rows": 3644,
          "unmeasurable": 0,
          "won_output_rows": 42
        },
        "k": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 20,
            "10_20ms": 3425,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 0,
            "20_50ms": 149,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 50,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 153,
          "mean_ms": 14.362239297475302,
          "measurable": 3644,
          "min_ms": 10,
          "p50_ms": 12.0,
          "p90_ms": 16.0,
          "p99_ms": 67.0,
          "rows": 3644,
          "unmeasurable": 0,
          "won_output_rows": 3439
        }
      }
    }
  },
  "archive_root": "union-staging",
  "boundary_guard": "cache",
  "bytes": 1046459716,
  "file": "2026-09-26T09.parquet",
  "generated_by": "tools/orderbook_ab/merge_ab.py",
  "hour": "2026-09-26/09",
  "hour_utc": "2026-09-26T09:00:00+00:00",
  "layout": "union-event-sorted-v1",
  "max_sequence": 63331871037071321,
  "merger_git_sha": "fcbb28046152741ae3754e951659977da4c8b36e",
  "min_sequence": 10133100099807826,
  "products": {
    "best_bid_ask": {
      "byte_range": [
        4,
        116515321
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "best_bid",
        "best_ask",
        "spread",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 63331871037070295,
      "min_sequence": 10133100099807826,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 10808957,
      "row_groups": [
        0,
        41
      ],
      "sha256": "eb4be52317afb39840208ebafa9a5431e41728daa1562d7c14afe5038fb0d85f"
    },
    "book": {
      "byte_range": [
        116515321,
        128756625
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "bids",
        "asks",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 63331871036893420,
      "min_sequence": 10133100099843826,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 117668,
      "row_groups": [
        42,
        42
      ],
      "sha256": "9fdaac1b4ec354ab68897e68fce9ad82d4d6686e9e019539bba7abd4516ca095"
    },
    "last_trade_price": {
      "byte_range": [
        128756625,
        131634168
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "price",
        "size",
        "side",
        "fee_rate_bps",
        "transaction_hash",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 63331871036713218,
      "min_sequence": 10133100099845901,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 51301,
      "row_groups": [
        43,
        43
      ],
      "sha256": "1e870634c16becca5146017f6a47e9862689486336eec80370ef037b42e8a9ae"
    },
    "market_resolved": {
      "byte_range": [
        131634168,
        131744421
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "id",
        "assets_ids",
        "winning_asset_id",
        "winning_outcome",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 63331871032784067,
      "min_sequence": 10133100103879630,
      "order_by": [
        "market",
        "id",
        "timestamp",
        "sequence"
      ],
      "row_count": 710,
      "row_groups": [
        44,
        44
      ],
      "sha256": "b24f7d985a5f7d9d278092a5d256062b8f79a505bf053ee9ccee354257b98777"
    },
    "new_market": {
      "byte_range": [
        131744421,
        131836393
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "id",
        "assets_ids",
        "outcomes",
        "question",
        "slug",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 63331871035935076,
      "min_sequence": 10133100100159208,
      "order_by": [
        "market",
        "id",
        "timestamp",
        "sequence"
      ],
      "row_count": 823,
      "row_groups": [
        45,
        45
      ],
      "sha256": "28cbf0f46fb6e7f4b663194837d642b718c86747da3fec0c42373c06d5772fe1"
    },
    "price_change": {
      "byte_range": [
        131836393,
        1045136669
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "price",
        "size",
        "side",
        "best_bid",
        "best_ask",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 63331871037071321,
      "min_sequence": 10133100099807828,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 93763596,
      "row_groups": [
        46,
        403
      ],
      "sha256": "7eca0947f02b96a1f5ed7a072eb13a4be446ae76d5657bf58cde57a3624a944a"
    },
    "tick_size_change": {
      "byte_range": [
        1045136669,
        1045268007
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "old_tick_size",
        "new_tick_size",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 63331871033201209,
      "min_sequence": 10133100102482165,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 3644,
      "row_groups": [
        404,
        404
      ],
      "sha256": "20ef096c4bb1e2aa94adba42da1bdfea0010db30dde485a682bbe5ca9c3264a8"
    }
  },
  "row_count": 104746699,
  "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: h, i, k). The winner is per row, not per hour -- each row names its own in source_witness",
  "sha256": "1d32a2f5b3bdda37124c697b5bedcb2488800ff9a309b0268fa4d0580eeca51a",
  "skipped_witnesses": {
    "c": {
      "alive": false,
      "listed_utc": "2026-09-26T10:35:15.106900Z",
      "newest_upload": "2026-09-25T11:20:09.612000Z",
      "reason": "not_staged"
    },
    "g": {
      "alive": false,
      "listed_utc": "2026-09-26T10:35:31.520550Z",
      "newest_upload": "2026-09-25T15:20:05.378000Z",
      "reason": "not_staged"
    }
  },
  "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": "2026-09-26T09.witness_stats.json",
  "witnesses": "hik",
  "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."
}
