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  "proofPath": "library/c132301-2026-08-05T04-16-12-660Z/source-proof.json",
  "proofUrl": "https://spine-link.vercel.app/assets/library/c132301-2026-08-05T04-16-12-660Z/source-proof.json?v=2026-08-05T04-16-12.660Z",
  "uploader": {
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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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        "colorDepth": 24,
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      "timezone": "Asia/Tokyo",
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  "blockchain": {
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    "note": "Anchor proofHash on-chain together with the GitHub commit/file path to timestamp the original upload evidence."
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