{
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   "part": "B",
   "caseId": "ledger-64k",
   "size": "64k",
   "ledgerRows": 1315,
   "route": "codex-cli",
   "modelRequested": "gpt-6.1-sol",
   "modelReported": "gpt-6.1-sol",
   "effort": "low",
   "rep": 2,
   "startedAt": "2026-10-07T06:04:03.462Z",
   "finishedAt": "2026-10-07T06:04:07.906Z",
   "status": "completed",
   "error": null,
   "startupMs": 314,
   "firstEventMs": 446,
   "firstUsefulMs": 4376,
   "streamMs": 0,
   "modelTurnMs": 4001,
   "totalMs": 4444,
   "inputTokens": 64198,
   "outputTokens": 5,
   "cacheReadTokens": 8960,
   "cacheWriteTokens": 0,
   "reasoningTokens": 0,
   "passed": true,
   "formatMiss": false,
   "answerCorrect": true,
   "outputLines": 1,
   "outputChars": 3,
   "lastLineCorrect": true,
   "cliVersion": "codex-cli 0.160.0",
   "seed": 6572574,
   "promptChars": 123387,
   "promptHashPrefix16": "4c936e9a7b193f11"
  },
  {
   "batch": "batch-4",
   "part": "B",
   "caseId": "ledger-1k",
   "size": "1k",
   "ledgerRows": 18,
   "route": "codex-cli",
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   "startedAt": "2026-10-07T06:04:07.906Z",
   "finishedAt": "2026-10-07T06:04:11.340Z",
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   "firstEventMs": 740,
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   "cacheReadTokens": 8960,
   "cacheWriteTokens": 0,
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   "passed": true,
   "formatMiss": false,
   "answerCorrect": true,
   "outputLines": 1,
   "outputChars": 3,
   "lastLineCorrect": true,
   "cliVersion": "codex-cli 0.160.0",
   "seed": 6981206,
   "promptChars": 2024,
   "promptHashPrefix16": "eddbf6771c8b7956"
  },
  {
   "batch": "batch-4",
   "part": "B",
   "caseId": "ledger-16k",
   "size": "16k",
   "ledgerRows": 327,
   "route": "codex-cli",
   "modelRequested": "gpt-6.1-sol",
   "modelReported": "gpt-6.1-sol",
   "effort": "low",
   "rep": 3,
   "startedAt": "2026-10-07T06:04:11.341Z",
   "finishedAt": "2026-10-07T06:04:16.025Z",
   "status": "completed",
   "error": null,
   "startupMs": 329,
   "firstEventMs": 473,
   "firstUsefulMs": 4282,
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   "inputTokens": 25038,
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   "cacheReadTokens": 8960,
   "cacheWriteTokens": 0,
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   "formatMiss": false,
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   "outputChars": 3,
   "lastLineCorrect": true,
   "cliVersion": "codex-cli 0.160.0",
   "seed": 3206834,
   "promptChars": 30964,
   "promptHashPrefix16": "a770f8184d99c873"
  },
  {
   "batch": "batch-4",
   "part": "B",
   "caseId": "ledger-64k",
   "size": "64k",
   "ledgerRows": 1315,
   "route": "codex-cli",
   "modelRequested": "gpt-6.1-sol",
   "modelReported": "gpt-6.1-sol",
   "effort": "low",
   "rep": 3,
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   "finishedAt": "2026-10-07T06:04:19.499Z",
   "status": "completed",
   "error": null,
   "startupMs": 391,
   "firstEventMs": 530,
   "firstUsefulMs": 3415,
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   "cacheReadTokens": 8960,
   "cacheWriteTokens": 0,
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   "formatMiss": false,
   "answerCorrect": true,
   "outputLines": 1,
   "outputChars": 3,
   "lastLineCorrect": true,
   "cliVersion": "codex-cli 0.160.0",
   "seed": 5326261,
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   "promptHashPrefix16": "388d51b09a6b14c4"
  }
 ],
 "audit": {
  "protocolBirthAt": "2026-10-07T01:09:29.906141Z",
  "protocolModifiedAt": "2026-10-07T06:17:00.475794Z",
  "firstProbeAt": "2026-10-07T01:10:04.707Z",
  "firstCountedCallAt": "2026-10-07T01:41:48.781Z",
  "protocolTimingNote": "Protocol file birth precedes all calls. The current file includes later amendments; earlier contents are not frozen. Amendment 3 is dated 06:05 UTC, after the Codex part B batch (06:03:43 to 06:04:19 UTC), despite claiming to precede it.",
  "controlsTimingNote": "The surviving controls receipt ran after the probes and before counted calls. Its earlier contents were overwritten.",
  "siblingStudyNote": "Same text, different tokens is a separate later study of marginal input token counts. None of its calls is included here.",
  "ledgerTextNote": "All 36 counted ledger prompts have different seeds and hashes. Input token differences are not a same-text tokenizer comparison. Size targets use probe calibration calculations and estimated prefix counts from earlier short prompts."
 }
}