Historical long-running checkpoint reliability test

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{
  "schemaVersion": 1,
  "publicSummaryVersion": "2026-09-30",
  "classification": "PUBLIC",
  "title": "Historical long-running checkpoint reliability test",
  "summary": "The record sealed on 31 July 2026 reports a replacement seven-hour laboratory soak with successful scheduled checkpoints and restoration of an older checkpoint. An earlier run exposed a defect that stopped repeated checkpointing; the record reports its correction and retest. It also discloses that cleanup destroyed the originally preserved checkpoint, so its restoration was not performed; the later restoration used a replacement artifact. One workload and one soak do not establish a general reliability rate. The separate 25-cycle sample supports only its stated confidence interval, not guaranteed success.",
  "date": "31 July 2026",
  "scope": "Laboratory or bench evidence; production behavior is not inferred from it.",
  "result": "The record sealed on 31 July 2026 reports a replacement seven-hour laboratory soak with successful scheduled checkpoints and restoration of an older checkpoint. An earlier run exposed a defect that stopped repeated checkpointing; the record reports its correction and retest. It also discloses that cleanup destroyed the originally preserved checkpoint, so its restoration was not performed; the later restoration used a replacement artifact. One workload and one soak do not establish a general reliability rate. The separate 25-cycle sample supports only its stated confidence interval, not guaranteed success.",
  "sections": [],
  "currentDeployment": "Not independently verified by this historical evidence.",
  "canonical": "/evidence/phase-6"
}

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SHA-256 40e63a777d9aa896fd264b5ea39b88cdd1503df02e25a91f5fb4ff83aa81a671