{
  "startedAt": "2026-09-11T10:27:19.932Z",
  "pollIntervalMs": 100,
  "clock": "same Node monotonic clock for both event observations",
  "event": "First external observation of the fully loaded requested generation, followed by first external observation of committed applied_version reaching that exact generation",
  "limitation": "Observation time is not the exact database commit instant. Queue readiness may precede its first observation by a polling interval; no historical missing observation is invented. SQL state timestamps retain their original transaction semantics.",
  "samples": [
    {
      "candidate": "repaired",
      "workload": "history-1y",
      "targetGeneration": 260,
      "firstObservedAt": "2026-09-11T10:27:43.708Z",
      "firstObservedMs": 23857.452,
      "precedingObservationMs": 23749.6761,
      "firstQueryMs": 1.6671999999998661,
      "completed": true,
      "completionObservedAt": "2026-09-11T10:27:49.364Z",
      "completionObservedMs": 29513.6504,
      "observedCompletionMs": 5656.1983999999975,
      "precedingCompletionObservationMs": 29408.434,
      "stateApplyMs": 5114.745,
      "maxPollingGapMs": 107.76330000000053,
      "completionQueryMs": 1.538699999997334
    },
    {
      "candidate": "repaired",
      "workload": "history-4y",
      "targetGeneration": 1043,
      "firstObservedAt": "2026-09-11T10:29:04.891Z",
      "firstObservedMs": 105040.791,
      "precedingObservationMs": 104934.7077,
      "firstQueryMs": 1.630300000004354,
      "completed": true,
      "completionObservedAt": "2026-09-11T10:29:24.226Z",
      "completionObservedMs": 124375.9112,
      "observedCompletionMs": 19335.120200000005,
      "precedingCompletionObservationMs": 124270.1369,
      "stateApplyMs": 17347.44,
      "maxPollingGapMs": 107.76330000000053,
      "completionQueryMs": 1.6739000000088708
    },
    {
      "candidate": "repaired",
      "workload": "history-10y",
      "targetGeneration": 2609,
      "firstObservedAt": "2026-09-11T10:32:03.471Z",
      "firstObservedMs": 283620.6767,
      "precedingObservationMs": 283514.4302,
      "firstQueryMs": 1.4465000000200234,
      "completed": true,
      "completionObservedAt": "2026-09-11T10:32:56.533Z",
      "completionObservedMs": 336682.1895,
      "observedCompletionMs": 53061.51279999997,
      "precedingCompletionObservationMs": 336575.9677,
      "stateApplyMs": 47886,
      "maxPollingGapMs": 119.91759999998612,
      "completionQueryMs": 1.5153999999747612
    },
    {
      "candidate": "repaired",
      "workload": "history-1y",
      "targetGeneration": 260,
      "firstObservedAt": "2026-09-11T10:34:08.842Z",
      "firstObservedMs": 408991.6613,
      "precedingObservationMs": 408885.2039,
      "firstQueryMs": 1.4004999999888241,
      "completed": true,
      "completionObservedAt": "2026-09-11T10:34:14.487Z",
      "completionObservedMs": 414636.8662,
      "observedCompletionMs": 5645.204900000012,
      "precedingCompletionObservationMs": 414529.8555,
      "stateApplyMs": 5100.275,
      "maxPollingGapMs": 120.38439999998081,
      "completionQueryMs": 1.5254999999888241
    },
    {
      "candidate": "repaired",
      "workload": "history-4y",
      "targetGeneration": 1043,
      "firstObservedAt": "2026-09-11T10:35:26.339Z",
      "firstObservedMs": 486488.5095,
      "precedingObservationMs": 486383.1921,
      "firstQueryMs": 1.2552999999606982,
      "completed": true,
      "completionObservedAt": "2026-09-11T10:35:46.089Z",
      "completionObservedMs": 506238.0271,
      "observedCompletionMs": 19749.51760000002,
      "precedingCompletionObservationMs": 506132.0298,
      "stateApplyMs": 17571.261,
      "maxPollingGapMs": 120.38439999998081,
      "completionQueryMs": 1.446700000029523
    },
    {
      "candidate": "repaired",
      "workload": "history-10y",
      "targetGeneration": 2609,
      "firstObservedAt": "2026-09-11T10:38:17.988Z",
      "firstObservedMs": 658137.3181,
      "precedingObservationMs": 658030.8765,
      "firstQueryMs": 1.691700000083074,
      "completed": true,
      "completionObservedAt": "2026-09-11T10:39:10.436Z",
      "completionObservedMs": 710584.9369,
      "observedCompletionMs": 52447.61879999994,
      "precedingCompletionObservationMs": 710480.3845,
      "stateApplyMs": 47354.518,
      "maxPollingGapMs": 121.11579999997048,
      "completionQueryMs": 1.7592999999178573
    }
  ],
  "missed": [],
  "errors": [],
  "finishedAt": "2026-09-11T10:40:40.812Z",
  "evidenceSource": {
    "sha256": "b9b7ba50bf6709802191a71c041dbfc36f350296111fca8e8743bf50c42bc425",
    "scriptSha256": "ebbb9558a87e442b0fc55295607c676467f3a16cac3d90796ee92ead8412c4d8",
    "candidate": "1ea1fa1a99c0280c70485ef2100f77356c3d4570",
    "reference": "b0fa93ec97fab41c6bcbc59bd096f3e1926535fd"
  }
}