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  "hashAlgorithm": "SHA-256",
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  "proofPath": "library/113301_b-2026-08-05T04-17-16-481Z/source-proof.json",
  "proofUrl": "https://spine-link.vercel.app/assets/library/113301_b-2026-08-05T04-17-16-481Z/source-proof.json?v=2026-08-05T04-17-16.481Z",
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    "anonymousFingerprint": "1120rdv",
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    "browserEnvironmentHashSha256": "37388ee1518f98f6c84861754d0419005bf097e730ad83b5682ef7159a06103f",
    "browserEnvironment": {
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      "platform": "Win32",
      "language": "ja",
      "languages": [
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      "hardwareConcurrency": 13,
      "deviceMemory": 32,
      "screen": {
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        "height": 1440,
        "colorDepth": 24,
        "pixelRatio": 1
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      "timezone": "Asia/Tokyo",
      "timezoneOffset": -540,
      "maxTouchPoints": 0,
      "cookieEnabled": true
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    "previewPath": "library/113301_b-2026-08-05T04-17-16-481Z"
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  "blockchain": {
    "status": "ready-to-anchor",
    "recommendedAnchorPayload": "sha256:515b7ad1f2800fc50dea645826c683cd14923e50a8ccec8f421f6850e4dba447",
    "note": "Anchor proofHash on-chain together with the GitHub commit/file path to timestamp the original upload evidence."
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}