{
  "start_block": 71220908,
  "start_utc": "2025-11-01T00:00:00Z",
  "end_block": 97164065,
  "end_timestamp_utc": "2026-10-10T00:59:27.474+00:00",
  "end_hash": "0xc05a110375682d644013288d13d977083718ea1224c4a4e6c9d599135ea6bcde",
  "retrieved_utc": "2026-10-10T00:59:29.569220+00:00",
  "rpc": "https://api.avax.network/ext/bc/C/rpc",
  "grid_stride_blocks": 4096,
  "headers_fetched": 25501,
  "detected_excess_changes": 7562,
  "detected_ms_changes": 1935,
  "detected_episodes": [
    {
      "first_change_block": 72240649,
      "first_change_utc": "2025-11-19T16:00:00.051+00:00",
      "old_ms": null,
      "last_change_block": 72240649,
      "last_change_utc": "2025-11-19T16:00:00.051+00:00",
      "new_ms": 2000,
      "detected_ms_changes": 1
    },
    {
      "first_change_block": 72246906,
      "first_change_utc": "2025-11-19T19:45:27.002+00:00",
      "old_ms": 2000,
      "last_change_block": 72260090,
      "last_change_utc": "2025-11-20T03:23:41.005+00:00",
      "new_ms": 1500,
      "detected_ms_changes": 702
    },
    {
      "first_change_block": 72287146,
      "first_change_utc": "2025-11-20T16:25:49.221+00:00",
      "old_ms": 1500,
      "last_change_block": 72292056,
      "last_change_utc": "2025-11-20T18:43:23.330+00:00",
      "new_ms": 1400,
      "detected_ms_changes": 224
    },
    {
      "first_change_block": 72343760,
      "first_change_utc": "2025-11-21T17:29:05.607+00:00",
      "old_ms": 1400,
      "last_change_block": 72347440,
      "last_change_utc": "2025-11-21T19:04:01.513+00:00",
      "new_ms": 1250,
      "detected_ms_changes": 202
    },
    {
      "first_change_block": 73049479,
      "first_change_utc": "2025-12-03T20:59:01.490+00:00",
      "old_ms": 1250,
      "last_change_block": 73054312,
      "last_change_utc": "2025-12-03T22:55:14.614+00:00",
      "new_ms": 1150,
      "detected_ms_changes": 162
    },
    {
      "first_change_block": 75242157,
      "first_change_utc": "2026-01-07T14:36:54.601+00:00",
      "old_ms": 1150,
      "last_change_block": 75252696,
      "last_change_utc": "2026-01-07T18:14:24.002+00:00",
      "new_ms": 993,
      "detected_ms_changes": 279
    },
    {
      "first_change_block": 78433964,
      "first_change_utc": "2026-02-19T04:34:15.432+00:00",
      "old_ms": 993,
      "last_change_block": 78433965,
      "last_change_utc": "2026-02-19T04:34:16.424+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 78737067,
      "first_change_utc": "2026-02-22T20:01:59.469+00:00",
      "old_ms": 993,
      "last_change_block": 78737069,
      "last_change_utc": "2026-02-22T20:02:01.453+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 81796779,
      "first_change_utc": "2026-04-01T02:05:15.395+00:00",
      "old_ms": 993,
      "last_change_block": 81796783,
      "last_change_utc": "2026-04-01T02:05:19.364+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 83095211,
      "first_change_utc": "2026-04-16T14:41:20.803+00:00",
      "old_ms": 993,
      "last_change_block": 83095213,
      "last_change_utc": "2026-04-16T14:41:22.787+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 83709612,
      "first_change_utc": "2026-04-23T20:49:11.158+00:00",
      "old_ms": 993,
      "last_change_block": 83709614,
      "last_change_utc": "2026-04-23T20:49:13.144+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 84045480,
      "first_change_utc": "2026-04-27T21:18:34.140+00:00",
      "old_ms": 993,
      "last_change_block": 84045486,
      "last_change_utc": "2026-04-27T21:18:40.093+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 89517733,
      "first_change_utc": "2026-07-05T04:53:17.427+00:00",
      "old_ms": 993,
      "last_change_block": 89517747,
      "last_change_utc": "2026-07-05T04:53:31.317+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 89669287,
      "first_change_utc": "2026-07-07T00:54:11.748+00:00",
      "old_ms": 993,
      "last_change_block": 89669297,
      "last_change_utc": "2026-07-07T00:54:21.668+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 90082987,
      "first_change_utc": "2026-07-12T01:08:18.168+00:00",
      "old_ms": 993,
      "last_change_block": 90082994,
      "last_change_utc": "2026-07-12T01:08:25.112+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 90996396,
      "first_change_utc": "2026-07-22T23:54:49.677+00:00",
      "old_ms": 993,
      "last_change_block": 90996397,
      "last_change_utc": "2026-07-22T23:54:50.669+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 91721385,
      "first_change_utc": "2026-08-01T01:25:09.279+00:00",
      "old_ms": 993,
      "last_change_block": 91721390,
      "last_change_utc": "2026-08-01T01:25:14.239+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 91758250,
      "first_change_utc": "2026-08-01T12:27:36.686+00:00",
      "old_ms": 993,
      "last_change_block": 91758254,
      "last_change_utc": "2026-08-01T12:27:40.654+00:00",
      "new_ms": 993,
      "detected_ms_changes": 2
    },
    {
      "first_change_block": 96816780,
      "first_change_utc": "2026-10-05T16:17:47.563+00:00",
      "old_ms": 993,
      "last_change_block": 96820341,
      "last_change_utc": "2026-10-05T17:30:03.112+00:00",
      "new_ms": 950,
      "detected_ms_changes": 83
    },
    {
      "first_change_block": 96885340,
      "first_change_utc": "2026-10-06T14:43:00.293+00:00",
      "old_ms": 950,
      "last_change_block": 96889245,
      "last_change_utc": "2026-10-06T15:54:11.447+00:00",
      "new_ms": 900,
      "detected_ms_changes": 80
    },
    {
      "first_change_block": 96962116,
      "first_change_utc": "2026-10-07T14:41:19.122+00:00",
      "old_ms": 900,
      "last_change_block": 96965583,
      "last_change_utc": "2026-10-07T15:40:59.248+00:00",
      "new_ms": 850,
      "detected_ms_changes": 84
    },
    {
      "first_change_block": 97044086,
      "first_change_utc": "2026-10-08T14:48:27.902+00:00",
      "old_ms": 850,
      "last_change_block": 97047408,
      "last_change_utc": "2026-10-08T15:44:17.722+00:00",
      "new_ms": 800,
      "detected_ms_changes": 94
    }
  ],
  "unscanned_interior_blocks": 25917658,
  "coverage_verdict": "EXHAUSTIVE inside listed windows; NON_EXHAUSTIVE outside them. Full-history inventory remains incomplete.",
  "method": "4096-block sweep; recursively bisect differing minDelayExcess endpoints to adjacent linked headers; exact integer fake exponential; preserve equal-endpoint gaps.",
  "note": "Header updates govern the successor block. Validator local preferences are not exposed.",
  "fully_scanned_windows": [
    [
      72232457,
      72268282
    ],
    [
      72278954,
      72300248
    ],
    [
      72335568,
      72355632
    ],
    [
      73041287,
      73062504
    ],
    [
      75233965,
      75260888
    ],
    [
      96808588,
      96828533
    ],
    [
      96877148,
      96897437
    ],
    [
      96953924,
      96973775
    ],
    [
      97035894,
      97055600
    ]
  ],
  "fully_scanned_window_blocks": 205123,
  "window_excess_changes": 18870,
  "window_ms_changes": 6187,
  "window_episodes": [
    {
      "first_change_block": 72240649,
      "first_change_utc": "2025-11-19T16:00:00.051+00:00",
      "old_ms": null,
      "last_change_block": 72260090,
      "last_change_utc": "2025-11-20T03:23:41.005+00:00",
      "new_ms": 1500,
      "ms_changes": 1799,
      "minimum_ms": 1500,
      "maximum_ms": 2000
    },
    {
      "first_change_block": 72285913,
      "first_change_utc": "2025-11-20T15:49:15.607+00:00",
      "old_ms": 1500,
      "last_change_block": 72292056,
      "last_change_utc": "2025-11-20T18:43:23.330+00:00",
      "new_ms": 1400,
      "ms_changes": 632,
      "minimum_ms": 1400,
      "maximum_ms": 1500
    },
    {
      "first_change_block": 72340851,
      "first_change_utc": "2025-11-21T16:11:10.911+00:00",
      "old_ms": 1400,
      "last_change_block": 72347440,
      "last_change_utc": "2025-11-21T19:04:01.513+00:00",
      "new_ms": 1250,
      "ms_changes": 674,
      "minimum_ms": 1250,
      "maximum_ms": 1400
    },
    {
      "first_change_block": 73048570,
      "first_change_utc": "2025-12-03T20:32:50.352+00:00",
      "old_ms": 1250,
      "last_change_block": 73054312,
      "last_change_utc": "2025-12-03T22:55:14.614+00:00",
      "new_ms": 1150,
      "ms_changes": 524,
      "minimum_ms": 1150,
      "maximum_ms": 1250
    },
    {
      "first_change_block": 75239152,
      "first_change_utc": "2026-01-07T13:28:21.102+00:00",
      "old_ms": 1150,
      "last_change_block": 75252696,
      "last_change_utc": "2026-01-07T18:14:24.002+00:00",
      "new_ms": 993,
      "ms_changes": 1031,
      "minimum_ms": 993,
      "maximum_ms": 1150
    },
    {
      "first_change_block": 96818192,
      "first_change_utc": "2026-10-05T16:45:29.923+00:00",
      "old_ms": 993,
      "last_change_block": 96828127,
      "last_change_utc": "2026-10-05T20:04:06.426+00:00",
      "new_ms": 950,
      "ms_changes": 172,
      "minimum_ms": 949,
      "maximum_ms": 991
    },
    {
      "first_change_block": 96877952,
      "first_change_utc": "2026-10-06T12:27:00.003+00:00",
      "old_ms": 950,
      "last_change_block": 96895716,
      "last_change_utc": "2026-10-06T17:53:09.025+00:00",
      "new_ms": 900,
      "ms_changes": 360,
      "minimum_ms": 899,
      "maximum_ms": 950
    },
    {
      "first_change_block": 96955154,
      "first_change_utc": "2026-10-07T12:39:22.707+00:00",
      "old_ms": 900,
      "last_change_block": 96972006,
      "last_change_utc": "2026-10-07T17:30:30.851+00:00",
      "new_ms": 850,
      "ms_changes": 406,
      "minimum_ms": 849,
      "maximum_ms": 900
    },
    {
      "first_change_block": 97037170,
      "first_change_utc": "2026-10-08T12:54:54.431+00:00",
      "old_ms": 850,
      "last_change_block": 97053127,
      "last_change_utc": "2026-10-08T17:14:37.420+00:00",
      "new_ms": 800,
      "ms_changes": 378,
      "minimum_ms": 799,
      "maximum_ms": 850
    }
  ],
  "normalized_window_ms_changes": 5976,
  "normalization": "992 and 993 ms are equivalent; all other values preserved.",
  "headers_cached": 211744,
  "remaining_blocks_without_headers": 25731415
}