{
  "checked": "2026-09-29",
  "originalZips": [
    {
      "id": "early",
      "title": "C01\u2013C479 complete window archive",
      "filename": "490d_C01_C479_Complete_Window_Archive_20260925(4).zip",
      "bytes": 344318259,
      "sha256": "23afb0ca2127848c36805b04b17558290f1bc4349cc0d32d9cbdfa844ae9eafe",
      "download": "/api/archive/early",
      "members": 6912
    },
    {
      "id": "companion",
      "title": "C480\u2013C1634 chat companion",
      "filename": "490d_Chat_Companion_C480_C1634_20260929.zip",
      "bytes": 68831081,
      "sha256": "57f1735b40a66b0e695b90ac3ebac83ed338e106a20aca03c2628e8130487ccd",
      "download": "/api/archive/companion",
      "members": 3057
    }
  ],
  "archiveMemberCRC": "All 9,969 outer ZIP members read successfully; ZIP CRC validation passed.",
  "allPublishedPayloadHashes": "All 9,969 path mappings checked against their original ZIP member hashes. The supporting payload pack and all four preserved ZIP objects passed complete anonymous download SHA-256 verification.",
  "companionAuditOmissionsResolved": 319,
  "researchReexecuted": false,
  "note": "The supplied audit documents the previous edition. Its missing-file findings are addressed by this archive addition; the current reading catalog is unchanged.",
  "liveObjectChecks": [
    {
      "filename": "490d_supporting_payloads.bin",
      "bytes": 129030663,
      "sha256": "fd04b481ca226050467beec2f88a1b9aa4442b207f8d22ea1b5b1d84096418b1",
      "anonymousDownload": "passed",
      "rangeDownload": "passed"
    },
    {
      "filename": "490d_Chat_Companion_C480_C1634_20260929.zip",
      "bytes": 68831081,
      "sha256": "57f1735b40a66b0e695b90ac3ebac83ed338e106a20aca03c2628e8130487ccd",
      "anonymousDownload": "passed",
      "rangeDownload": "passed"
    },
    {
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      "bytes": 344318259,
      "sha256": "23afb0ca2127848c36805b04b17558290f1bc4349cc0d32d9cbdfa844ae9eafe",
      "anonymousDownload": "passed",
      "rangeDownload": "passed"
    },
    {
      "filename": "490d_C01_C265_Complete_Window_Archive_20260923.zip",
      "bytes": 105886952,
      "sha256": "a76c7e9d1ed130d95c827fe208192a18230a0e92f951a39e454550b9d5403e64",
      "anonymousDownload": "passed",
      "rangeDownload": "passed"
    },
    {
      "filename": "490d_Complete_Study_Handoff_20260917.zip",
      "bytes": 159771259,
      "sha256": "a24741428ab6b1f88577b4571597b442dd35d069664e56dd1e29c3c354157a19",
      "anonymousDownload": "passed",
      "rangeDownload": "passed"
    }
  ],
  "liveSupportingFileChecks": {
    "count": 45,
    "allSuccessful": true,
    "record": "/archive/live-download-verification.json"
  }
}