{
  "schemaVersion": 1,
  "publicSummaryVersion": "2026-09-30",
  "classification": "PUBLIC",
  "title": "The benchmark reproduction attestation",
  "summary": "The attestation records that the v0.1.3 reproduction artifacts were used in a fresh-host run on 25 August 2026. The first attempt refused to continue safely; the second completed in 176 seconds. This is historical laboratory evidence, not an installation offer or a current production certification. Original artifacts remain preserved privately; this public derivative has its own digest.",
  "date": "25 August 2026",
  "scope": "Historical record; any production observation is limited to the dated test described below.",
  "result": "The attestation records that the v0.1.3 reproduction artifacts were used in a fresh-host run on 25 August 2026. The first attempt refused to continue safely; the second completed in 176 seconds. This is historical laboratory evidence, not an installation offer or a current production certification. Original artifacts remain preserved privately; this public derivative has its own digest.",
  "sections": [
    {
      "title": "Reviewed historical attestation",
      "items": [
        {
          "id": "attestation-statement",
          "title": "Statement preserved from the attestation",
          "text": "The v0.1.3 bench-reproduction artifacts existed, were consumed by the named gate, and produced the recorded outcomes. Their bytes are not published: KeepState is hosted-only and publishes no engine acquisition path. Each sha256 below is recomputed at every site build from the sealed originals and cross-checked against the public SHA256SUMS and the release manifest; a mismatch fails the build."
        },
        {
          "id": "attestation-release",
          "title": "Attested release and product revision",
          "text": "Schema: keepstate/attestation/v1. Release: v0.1.7. Product revision: 04c555b5fce8a37986943ce3ca0d53bae569585b. These identify the historical attestation, not this website deployment."
        },
        {
          "id": "attestation-verification",
          "title": "Verification described by the historical record",
          "text": "Supervised, non-exportable review: the sealed bytes are shown against these hashes in a logged session; nothing transfers.",
          "limitation": "This describes the review procedure in the historical record. It does not establish that a current document-access service or review appointment is available."
        },
        {
          "id": "attestation-content-flags",
          "title": "Content declarations",
          "text": "containsNoCommands: true; containsNoUrls: true. These declarations refer to the original attestation."
        }
      ]
    },
    {
      "title": "All attested artifacts",
      "items": [
        {
          "id": "attested-artifact-1",
          "title": "quickstart-v0.1.3.sh",
          "text": "green: fresh-host run; first attempt fail-closed refusal recorded; second attempt complete in 176 s",
          "date": "2026-08-25",
          "scope": "Historical v0.1.3 reproduction artifacts",
          "result": "SHA-256: c2b1e133aab1a397d3b1c284453298fd3eeb338635638abdb3ab84d832713102",
          "limitation": "Consumed by: quickstart-clean-room gate. Manifest field: quickstartSha256. Matches checksum-list row: true. The original artifact bytes are not included in this derivative."
        },
        {
          "id": "attested-artifact-2",
          "title": "QUICKSTART-v0.1.3.md",
          "text": "sealed at the tag; the script above derives mechanically from its fenced blocks",
          "date": "2026-08-25",
          "scope": "Historical v0.1.3 reproduction artifacts",
          "result": "SHA-256: fd25e88ebf1f436934df9b97ccdf4920f692120b5f65d39bd0d962036e34bb80",
          "limitation": "Consumed by: release seal v0.1.3. Manifest field: Not recorded. Matches checksum-list row: true. The original artifact bytes are not included in this derivative."
        },
        {
          "id": "attested-artifact-3",
          "title": "quickstart-run-v0.1.3.md",
          "text": "verbatim transcript of the green run, retained privately; a redacted derivative is published beside this attestation",
          "date": "2026-08-25",
          "scope": "Historical v0.1.3 reproduction artifacts",
          "result": "SHA-256: b2f954bf96a7f39be6d79218f2cdef812185f4b86262f1eff6c6b309feacade1",
          "limitation": "Consumed by: clean-room evidence record. Manifest field: Not recorded. Matches checksum-list row: false. The original artifact bytes are not included in this derivative."
        }
      ]
    }
  ],
  "currentDeployment": "Not independently verified by this historical evidence.",
  "canonical": "/evidence/bench-repro-attestation",
  "attestation": {
    "$schema": "keepstate/attestation/v1",
    "release": "v0.1.7",
    "productCommit": "04c555b5fce8a37986943ce3ca0d53bae569585b",
    "statement": "The v0.1.3 bench-reproduction artifacts existed, were consumed by the named gate, and produced the recorded outcomes. Their bytes are not published: KeepState is hosted-only and publishes no engine acquisition path. Each sha256 below is recomputed at every site build from the sealed originals and cross-checked against the public SHA256SUMS and the release manifest; a mismatch fails the build.",
    "attested": [
      {
        "name": "quickstart-v0.1.3.sh",
        "sha256": "c2b1e133aab1a397d3b1c284453298fd3eeb338635638abdb3ab84d832713102",
        "matchesManifestField": "quickstartSha256",
        "matchesSha256SumsRow": true,
        "consumedBy": "quickstart-clean-room gate",
        "runDate": "2026-08-25",
        "outcome": "green: fresh-host run; first attempt fail-closed refusal recorded; second attempt complete in 176 s"
      },
      {
        "name": "QUICKSTART-v0.1.3.md",
        "sha256": "fd25e88ebf1f436934df9b97ccdf4920f692120b5f65d39bd0d962036e34bb80",
        "matchesManifestField": null,
        "matchesSha256SumsRow": true,
        "consumedBy": "release seal v0.1.3",
        "runDate": "2026-08-25",
        "outcome": "sealed at the tag; the script above derives mechanically from its fenced blocks"
      },
      {
        "name": "quickstart-run-v0.1.3.md",
        "sha256": "b2f954bf96a7f39be6d79218f2cdef812185f4b86262f1eff6c6b309feacade1",
        "matchesManifestField": null,
        "matchesSha256SumsRow": false,
        "consumedBy": "clean-room evidence record",
        "runDate": "2026-08-25",
        "outcome": "verbatim transcript of the green run, retained privately; a redacted derivative is published beside this attestation"
      }
    ],
    "verification": "Supervised, non-exportable review: the sealed bytes are shown against these hashes in a logged session; nothing transfers.",
    "containsNoCommands": true,
    "containsNoUrls": true
  }
}