{
  "ab_accounting": {
    "best_bid_ask": {
      "boundary_dropped": 104,
      "class": "FULL",
      "exception_markets": 79,
      "rows_b": 8460560,
      "rows_by_domain": {
        "b": 8460560,
        "c": 8463050,
        "e": 8458225,
        "h": 8445281
      },
      "rows_c": 8463050,
      "rows_e": 8458225,
      "rows_h": 8445281,
      "rows_joined": 8463326,
      "rows_merged": 8463222,
      "witness_latency": {
        "b": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 390,
            "100_200ms": 116828,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 56,
            "200_500ms": 44738,
            "20_50ms": 4616858,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 4846,
            "50_100ms": 3676844,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 2505,
          "mean_ms": 53.60239381317549,
          "measurable": 8460560,
          "min_ms": 45,
          "p50_ms": 49.0,
          "p90_ms": 61.0,
          "p99_ms": 150.0,
          "rows": 8460560,
          "unmeasurable": 0,
          "won_output_rows": 6
        },
        "c": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 133,
            "100_200ms": 23595,
            "10_20ms": 217266,
            "1_2ms": 24,
            "2000_5000ms": 78,
            "200_500ms": 9962,
            "20_50ms": 140169,
            "2_5ms": 6304729,
            "5000_10000ms": 30,
            "500_1000ms": 463,
            "50_100ms": 48609,
            "5_10ms": 1717992,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 5140,
          "mean_ms": 5.82550912496086,
          "measurable": 8463050,
          "min_ms": 1,
          "p50_ms": 4.0,
          "p90_ms": 6.0,
          "p99_ms": 49.0,
          "rows": 8463050,
          "unmeasurable": 0,
          "won_output_rows": 2395
        },
        "e": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 4618,
            "100_200ms": 181043,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 5888,
            "200_500ms": 71688,
            "20_50ms": 7747754,
            "2_5ms": 0,
            "5000_10000ms": 458,
            "500_1000ms": 17058,
            "50_100ms": 429718,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 7018,
          "mean_ms": 49.745356029190525,
          "measurable": 8458225,
          "min_ms": 33,
          "p50_ms": 40.0,
          "p90_ms": 47.0,
          "p99_ms": 219.0,
          "rows": 8458225,
          "unmeasurable": 0,
          "won_output_rows": 8458135
        },
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 22,
            "1000_2000ms": 2710,
            "100_200ms": 47991,
            "10_20ms": 7382020,
            "1_2ms": 0,
            "2000_5000ms": 2635,
            "200_500ms": 23787,
            "20_50ms": 869732,
            "2_5ms": 0,
            "5000_10000ms": 432,
            "500_1000ms": 8814,
            "50_100ms": 107112,
            "5_10ms": 0,
            "ge30000ms": 26,
            "neg": 0
          },
          "max_ms": 37195,
          "mean_ms": 22.658376672132047,
          "measurable": 8445281,
          "min_ms": 14,
          "p50_ms": 17.0,
          "p90_ms": 21.0,
          "p99_ms": 102.0,
          "rows": 8445281,
          "unmeasurable": 0,
          "won_output_rows": 2686
        }
      }
    },
    "book": {
      "boundary_dropped": 4,
      "class": "FULL",
      "exception_markets": 18547,
      "rows_b": 122919,
      "rows_by_domain": {
        "b": 122919,
        "c": 137813,
        "e": 128553,
        "h": 122751
      },
      "rows_c": 137813,
      "rows_e": 128553,
      "rows_h": 122751,
      "rows_joined": 166989,
      "rows_merged": 166985,
      "witness_latency": {
        "b": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 696,
            "1000_2000ms": 374,
            "100_200ms": 8491,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 1003,
            "200_500ms": 4754,
            "20_50ms": 31213,
            "2_5ms": 0,
            "5000_10000ms": 264,
            "500_1000ms": 611,
            "50_100ms": 70286,
            "5_10ms": 0,
            "ge30000ms": 5227,
            "neg": 0
          },
          "max_ms": 6806507343,
          "mean_ms": 7201395.89441014,
          "measurable": 122919,
          "min_ms": 45,
          "p50_ms": 53.0,
          "p90_ms": 210.0,
          "p99_ms": 17304189.0,
          "rows": 122919,
          "unmeasurable": 0,
          "won_output_rows": 6495
        },
        "c": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 2140,
            "1000_2000ms": 536,
            "100_200ms": 1108,
            "10_20ms": 7294,
            "1_2ms": 0,
            "2000_5000ms": 1287,
            "200_500ms": 704,
            "20_50ms": 5980,
            "2_5ms": 29256,
            "5000_10000ms": 814,
            "500_1000ms": 188,
            "50_100ms": 2362,
            "5_10ms": 69396,
            "ge30000ms": 16748,
            "neg": 0
          },
          "max_ms": 6809502848,
          "mean_ms": 19720462.42514857,
          "measurable": 137813,
          "min_ms": 2,
          "p50_ms": 6.0,
          "p90_ms": 82735.80000000018,
          "p99_ms": 195585292.0,
          "rows": 137813,
          "unmeasurable": 0,
          "won_output_rows": 21433
        },
        "e": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 1118,
            "1000_2000ms": 681,
            "100_200ms": 8521,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 1625,
            "200_500ms": 2953,
            "20_50ms": 90959,
            "2_5ms": 0,
            "5000_10000ms": 461,
            "500_1000ms": 950,
            "50_100ms": 11037,
            "5_10ms": 0,
            "ge30000ms": 10248,
            "neg": 0
          },
          "max_ms": 2444388931,
          "mean_ms": 9360904.057330439,
          "measurable": 128553,
          "min_ms": 34,
          "p50_ms": 43.0,
          "p90_ms": 2888.0,
          "p99_ms": 49179815.31999996,
          "rows": 128553,
          "unmeasurable": 0,
          "won_output_rows": 128553
        },
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 870,
            "1000_2000ms": 486,
            "100_200ms": 3916,
            "10_20ms": 51690,
            "1_2ms": 0,
            "2000_5000ms": 1199,
            "200_500ms": 1254,
            "20_50ms": 50166,
            "2_5ms": 0,
            "5000_10000ms": 526,
            "500_1000ms": 510,
            "50_100ms": 5694,
            "5_10ms": 0,
            "ge30000ms": 6440,
            "neg": 0
          },
          "max_ms": 6802222012,
          "mean_ms": 1484312.2858795447,
          "measurable": 122751,
          "min_ms": 15,
          "p50_ms": 20.0,
          "p90_ms": 156.0,
          "p99_ms": 26769116.0,
          "rows": 122751,
          "unmeasurable": 0,
          "won_output_rows": 10504
        }
      }
    },
    "last_trade_price": {
      "boundary_dropped": 0,
      "class": "FULL",
      "exception_markets": 0,
      "rows_b": 55912,
      "rows_by_domain": {
        "b": 55912,
        "c": 56118,
        "e": 55712,
        "h": 54205
      },
      "rows_c": 56118,
      "rows_e": 55712,
      "rows_h": 54205,
      "rows_joined": 56145,
      "rows_merged": 56145,
      "witness_latency": {
        "b": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 100,
            "100_200ms": 4924,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 76,
            "200_500ms": 2017,
            "20_50ms": 941,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 372,
            "50_100ms": 47482,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 4973,
          "mean_ms": 85.8743203605666,
          "measurable": 55912,
          "min_ms": 47,
          "p50_ms": 57.0,
          "p90_ms": 119.0,
          "p99_ms": 492.8899999999994,
          "rows": 55912,
          "unmeasurable": 0,
          "won_output_rows": 8
        },
        "c": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 12,
            "100_200ms": 1023,
            "10_20ms": 12188,
            "1_2ms": 0,
            "2000_5000ms": 53,
            "200_500ms": 429,
            "20_50ms": 10349,
            "2_5ms": 4,
            "5000_10000ms": 0,
            "500_1000ms": 68,
            "50_100ms": 2429,
            "5_10ms": 29563,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 4930,
          "mean_ms": 24.40051320431947,
          "measurable": 56118,
          "min_ms": 4,
          "p50_ms": 9.0,
          "p90_ms": 39.0,
          "p99_ms": 199.83000000000175,
          "rows": 56118,
          "unmeasurable": 0,
          "won_output_rows": 273
        },
        "e": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 188,
            "100_200ms": 4000,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 301,
            "200_500ms": 1496,
            "20_50ms": 32504,
            "2_5ms": 0,
            "5000_10000ms": 44,
            "500_1000ms": 483,
            "50_100ms": 16696,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 7023,
          "mean_ms": 96.21681145893164,
          "measurable": 55712,
          "min_ms": 36,
          "p50_ms": 47.0,
          "p90_ms": 112.0,
          "p99_ms": 890.8899999999994,
          "rows": 55712,
          "unmeasurable": 0,
          "won_output_rows": 55712
        },
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 23,
            "100_200ms": 1873,
            "10_20ms": 4508,
            "1_2ms": 0,
            "2000_5000ms": 67,
            "200_500ms": 665,
            "20_50ms": 42141,
            "2_5ms": 0,
            "5000_10000ms": 3,
            "500_1000ms": 178,
            "50_100ms": 4747,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 8017,
          "mean_ms": 43.42101282169541,
          "measurable": 54205,
          "min_ms": 17,
          "p50_ms": 23.0,
          "p90_ms": 61.0,
          "p99_ms": 307.0,
          "rows": 54205,
          "unmeasurable": 0,
          "won_output_rows": 152
        }
      }
    },
    "market_resolved": {
      "boundary_dropped": 0,
      "class": "FULL",
      "exception_markets": 0,
      "rows_b": 1174,
      "rows_by_domain": {
        "b": 1174,
        "c": 1174,
        "e": 1174,
        "h": 1174
      },
      "rows_c": 1174,
      "rows_e": 1174,
      "rows_h": 1174,
      "rows_joined": 1191,
      "rows_merged": 1191,
      "witness_latency": {
        "b": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 241,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 86,
            "20_50ms": 412,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 5,
            "50_100ms": 413,
            "5_10ms": 0,
            "ge30000ms": 17,
            "neg": 0
          },
          "max_ms": 60523,
          "mean_ms": 921.3424190800681,
          "measurable": 1174,
          "min_ms": 45,
          "p50_ms": 51.0,
          "p90_ms": 192.80000000000018,
          "p99_ms": 59735.08,
          "rows": 1174,
          "unmeasurable": 0
        },
        "c": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 2,
            "10_20ms": 22,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 1,
            "20_50ms": 19,
            "2_5ms": 905,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 7,
            "5_10ms": 218,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 351,
          "mean_ms": 5.459965928449744,
          "measurable": 1174,
          "min_ms": 2,
          "p50_ms": 4.0,
          "p90_ms": 6.0,
          "p99_ms": 43.809999999999945,
          "rows": 1174,
          "unmeasurable": 0,
          "won_output_rows": 17
        },
        "e": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 1,
            "1000_2000ms": 2,
            "100_200ms": 245,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 31,
            "20_50ms": 768,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 10,
            "50_100ms": 101,
            "5_10ms": 0,
            "ge30000ms": 16,
            "neg": 0
          },
          "max_ms": 59751,
          "mean_ms": 901.1073253833049,
          "measurable": 1174,
          "min_ms": 34,
          "p50_ms": 40.0,
          "p90_ms": 133.70000000000005,
          "p99_ms": 59156.08,
          "rows": 1174,
          "unmeasurable": 0,
          "won_output_rows": 1174
        },
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 1,
            "1000_2000ms": 0,
            "100_200ms": 16,
            "10_20ms": 703,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 1,
            "20_50ms": 389,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 48,
            "5_10ms": 0,
            "ge30000ms": 16,
            "neg": 0
          },
          "max_ms": 59710,
          "mean_ms": 851.3841567291312,
          "measurable": 1174,
          "min_ms": 15,
          "p50_ms": 18.0,
          "p90_ms": 40.0,
          "p99_ms": 59072.079999999994,
          "rows": 1174,
          "unmeasurable": 0
        }
      }
    },
    "new_market": {
      "boundary_dropped": 0,
      "class": "FULL",
      "exception_markets": 0,
      "rows_b": 698,
      "rows_by_domain": {
        "b": 698,
        "c": 698,
        "e": 698,
        "h": 698
      },
      "rows_c": 698,
      "rows_e": 698,
      "rows_h": 698,
      "rows_joined": 981,
      "rows_merged": 981,
      "witness_latency": {
        "b": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 93,
            "1000_2000ms": 0,
            "100_200ms": 146,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 192,
            "20_50ms": 0,
            "2_5ms": 0,
            "5000_10000ms": 2,
            "500_1000ms": 2,
            "50_100ms": 259,
            "5_10ms": 0,
            "ge30000ms": 4,
            "neg": 0
          },
          "max_ms": 61846,
          "mean_ms": 3000.603151862464,
          "measurable": 698,
          "min_ms": 50,
          "p50_ms": 161.0,
          "p90_ms": 15206.000000000005,
          "p99_ms": 27455.849999999988,
          "rows": 698,
          "unmeasurable": 0,
          "won_output_rows": 45
        },
        "c": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 85,
            "1000_2000ms": 0,
            "100_200ms": 129,
            "10_20ms": 93,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 43,
            "20_50ms": 176,
            "2_5ms": 0,
            "5000_10000ms": 2,
            "500_1000ms": 0,
            "50_100ms": 133,
            "5_10ms": 32,
            "ge30000ms": 5,
            "neg": 0
          },
          "max_ms": 90174,
          "mean_ms": 2573.9183381088824,
          "measurable": 698,
          "min_ms": 6,
          "p50_ms": 61.0,
          "p90_ms": 12431.700000000008,
          "p99_ms": 25344.90999999993,
          "rows": 698,
          "unmeasurable": 0,
          "won_output_rows": 86
        },
        "e": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 101,
            "1000_2000ms": 0,
            "100_200ms": 191,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 115,
            "20_50ms": 84,
            "2_5ms": 0,
            "5000_10000ms": 1,
            "500_1000ms": 0,
            "50_100ms": 199,
            "5_10ms": 0,
            "ge30000ms": 7,
            "neg": 0
          },
          "max_ms": 61842,
          "mean_ms": 3229.1074498567336,
          "measurable": 698,
          "min_ms": 39,
          "p50_ms": 144.5,
          "p90_ms": 16690.100000000017,
          "p99_ms": 29651.239999999823,
          "rows": 698,
          "unmeasurable": 0,
          "won_output_rows": 698
        },
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 98,
            "1000_2000ms": 0,
            "100_200ms": 131,
            "10_20ms": 30,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 83,
            "20_50ms": 247,
            "2_5ms": 0,
            "5000_10000ms": 1,
            "500_1000ms": 0,
            "50_100ms": 106,
            "5_10ms": 0,
            "ge30000ms": 2,
            "neg": 0
          },
          "max_ms": 54470,
          "mean_ms": 2593.8868194842407,
          "measurable": 698,
          "min_ms": 17,
          "p50_ms": 71.0,
          "p90_ms": 13189.000000000004,
          "p99_ms": 24170.96,
          "rows": 698,
          "unmeasurable": 0,
          "won_output_rows": 152
        }
      }
    },
    "price_change": {
      "boundary_dropped": 1430,
      "class": "FULL",
      "exception_markets": 106392,
      "rows_b": 48837187,
      "rows_by_domain": {
        "b": 48837187,
        "c": 84781952,
        "e": 51786607,
        "h": 59350203
      },
      "rows_c": 84781952,
      "rows_e": 51786607,
      "rows_h": 59350203,
      "rows_joined": 84798597,
      "rows_merged": 84797167,
      "witness_latency": {
        "b": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 20702,
            "100_200ms": 1032468,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 5104,
            "200_500ms": 418403,
            "20_50ms": 24374783,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 57926,
            "50_100ms": 22927801,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 2551,
          "mean_ms": 56.62580850530969,
          "measurable": 48837187,
          "min_ms": 45,
          "p50_ms": 50.0,
          "p90_ms": 62.0,
          "p99_ms": 203.0,
          "rows": 48837187,
          "unmeasurable": 0,
          "won_output_rows": 840
        },
        "c": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 1196,
            "100_200ms": 245792,
            "10_20ms": 2488343,
            "1_2ms": 20,
            "2000_5000ms": 608,
            "200_500ms": 148458,
            "20_50ms": 1522583,
            "2_5ms": 59676139,
            "5000_10000ms": 62,
            "500_1000ms": 4220,
            "50_100ms": 535363,
            "5_10ms": 20159168,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 5195,
          "mean_ms": 6.199869991198127,
          "measurable": 84781952,
          "min_ms": 1,
          "p50_ms": 4.0,
          "p90_ms": 7.0,
          "p99_ms": 54.0,
          "rows": 84781952,
          "unmeasurable": 0,
          "won_output_rows": 16590092
        },
        "e": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 53108,
            "100_200ms": 1397551,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 75636,
            "200_500ms": 496635,
            "20_50ms": 45960104,
            "2_5ms": 0,
            "5000_10000ms": 12176,
            "500_1000ms": 110654,
            "50_100ms": 3680743,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 7018,
          "mean_ms": 55.72781259834227,
          "measurable": 51786607,
          "min_ms": 33,
          "p50_ms": 40.0,
          "p90_ms": 53.0,
          "p99_ms": 266.0,
          "rows": 51786607,
          "unmeasurable": 0,
          "won_output_rows": 51785549
        },
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 166,
            "1000_2000ms": 18040,
            "100_200ms": 418308,
            "10_20ms": 50178257,
            "1_2ms": 0,
            "2000_5000ms": 17278,
            "200_500ms": 214668,
            "20_50ms": 7501708,
            "2_5ms": 0,
            "5000_10000ms": 2876,
            "500_1000ms": 60275,
            "50_100ms": 938477,
            "5_10ms": 0,
            "ge30000ms": 150,
            "neg": 0
          },
          "max_ms": 37461,
          "mean_ms": 23.33413117390685,
          "measurable": 59350203,
          "min_ms": 14,
          "p50_ms": 17.0,
          "p90_ms": 22.0,
          "p99_ms": 119.0,
          "rows": 59350203,
          "unmeasurable": 0,
          "won_output_rows": 16420686
        }
      }
    },
    "tick_size_change": {
      "boundary_dropped": 0,
      "class": "FULL",
      "exception_markets": 0,
      "rows_b": 2490,
      "rows_by_domain": {
        "b": 2490,
        "c": 2490,
        "e": 2490,
        "h": 2490
      },
      "rows_c": 2490,
      "rows_e": 2490,
      "rows_h": 2490,
      "rows_joined": 2490,
      "rows_merged": 2490,
      "witness_latency": {
        "b": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 39,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 4,
            "20_50ms": 1256,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 1191,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 205,
          "mean_ms": 52.290361445783134,
          "measurable": 2490,
          "min_ms": 46,
          "p50_ms": 49.0,
          "p90_ms": 61.0,
          "p99_ms": 123.0,
          "rows": 2490,
          "unmeasurable": 0
        },
        "c": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 0,
            "10_20ms": 73,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 0,
            "20_50ms": 16,
            "2_5ms": 1767,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 8,
            "5_10ms": 626,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 87,
          "mean_ms": 4.819277108433735,
          "measurable": 2490,
          "min_ms": 2,
          "p50_ms": 4.0,
          "p90_ms": 6.0,
          "p99_ms": 19.0,
          "rows": 2490,
          "unmeasurable": 0
        },
        "e": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 62,
            "10_20ms": 0,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 0,
            "20_50ms": 2294,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 134,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 163,
          "mean_ms": 43.29236947791165,
          "measurable": 2490,
          "min_ms": 34,
          "p50_ms": 40.0,
          "p90_ms": 46.0,
          "p99_ms": 117.0,
          "rows": 2490,
          "unmeasurable": 0,
          "won_output_rows": 2490
        },
        "h": {
          "buckets_ms": {
            "0_1ms": 0,
            "10000_30000ms": 0,
            "1000_2000ms": 0,
            "100_200ms": 8,
            "10_20ms": 2186,
            "1_2ms": 0,
            "2000_5000ms": 0,
            "200_500ms": 0,
            "20_50ms": 259,
            "2_5ms": 0,
            "5000_10000ms": 0,
            "500_1000ms": 0,
            "50_100ms": 37,
            "5_10ms": 0,
            "ge30000ms": 0,
            "neg": 0
          },
          "max_ms": 124,
          "mean_ms": 18.910441767068274,
          "measurable": 2490,
          "min_ms": 14,
          "p50_ms": 17.0,
          "p90_ms": 20.0,
          "p99_ms": 67.0,
          "rows": 2490,
          "unmeasurable": 0
        }
      }
    }
  },
  "archive_root": "union-staging",
  "boundary_guard": "cache",
  "bytes": 868024258,
  "file": "2026-09-04T05.parquet",
  "generated_by": "tools/orderbook_ab/merge_ab.py",
  "hour": "2026-09-04/05",
  "hour_utc": "2026-09-04T05:00:00+00:00",
  "layout": "union-event-sorted-v1",
  "max_sequence": 163818437059170259,
  "merger_git_sha": "unknown: MERGER_GIT_SHA malformed (not 40-hex)",
  "min_sequence": 281491604731602,
  "products": {
    "best_bid_ask": {
      "byte_range": [
        4,
        92881423
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "best_bid",
        "best_ask",
        "spread",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 163818437009998983,
      "min_sequence": 281491604731760,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 8463222,
      "row_groups": [
        0,
        32
      ],
      "sha256": "83b87bf9e55a701a36196db7a6f6972b386961362d4a0ee32bac387cae7b54b9"
    },
    "book": {
      "byte_range": [
        92881423,
        109292691
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "bids",
        "asks",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 163818437059170259,
      "min_sequence": 281491604733365,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 166985,
      "row_groups": [
        33,
        33
      ],
      "sha256": "4905e3d7a8af3321e817b14b60378e159d6d23e3599293a41bc2606fededff02"
    },
    "last_trade_price": {
      "byte_range": [
        109292691,
        112370788
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "price",
        "size",
        "side",
        "fee_rate_bps",
        "transaction_hash",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 163818437050244551,
      "min_sequence": 281491604735090,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 56145,
      "row_groups": [
        34,
        34
      ],
      "sha256": "ea6b223627fd36cbe5c356d392a473ac44406f76cfa297e2c4d1207bbef72128"
    },
    "market_resolved": {
      "byte_range": [
        112370788,
        112563924
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "id",
        "assets_ids",
        "winning_asset_id",
        "winning_outcome",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 14355224625959007,
      "min_sequence": 281491605016726,
      "order_by": [
        "market",
        "id",
        "timestamp",
        "sequence"
      ],
      "row_count": 1191,
      "row_groups": [
        35,
        35
      ],
      "sha256": "390f35593ef631b6ff851df64286494dc826f05e9931325f25eeb65de611f8e9"
    },
    "new_market": {
      "byte_range": [
        112563924,
        112670957
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "id",
        "assets_ids",
        "outcomes",
        "question",
        "slug",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 163818437053544947,
      "min_sequence": 281491605011949,
      "order_by": [
        "market",
        "id",
        "timestamp",
        "sequence"
      ],
      "row_count": 981,
      "row_groups": [
        36,
        36
      ],
      "sha256": "b01df1e5a04162967fa0bdce6adc319a5d85757ba456efa2700200c7e6a2a39c"
    },
    "price_change": {
      "byte_range": [
        112670957,
        866866396
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "price",
        "size",
        "side",
        "best_bid",
        "best_ask",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 163818437058684139,
      "min_sequence": 281491604731602,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 84797167,
      "row_groups": [
        37,
        360
      ],
      "sha256": "a1be7812ae5ba552f8d0648eeb1bcd24874c8a9b977d8539cbd29a5937d3ab2a"
    },
    "tick_size_change": {
      "byte_range": [
        866866396,
        866956171
      ],
      "columns": [
        "timestamp_received",
        "sequence",
        "timestamp",
        "market",
        "asset_id",
        "old_tick_size",
        "new_tick_size",
        "witness_set",
        "arrival_skew",
        "source_witness"
      ],
      "max_sequence": 281491664093968,
      "min_sequence": 281491604986621,
      "order_by": [
        "market",
        "asset_id",
        "timestamp",
        "sequence"
      ],
      "row_count": 2490,
      "row_groups": [
        361,
        361
      ],
      "sha256": "623270f19802963ed89c86e3536041825e55a21c886508758fd7d2c0df03f034"
    }
  },
  "row_count": 93488181,
  "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: b, c, h, e)",
  "sha256": "cd60a4913a37afd1d404a808b2a166677192608b8af43c8d4791fce47048a104",
  "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": "2026-09-04T05.witness_stats.json",
  "witnesses": "bche",
  "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."
}
