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  "proofUrl": "https://spine-link.vercel.app/assets/library/w140102_sd_spine-2026-07-28T23-24-26-001Z/source-proof.json?v=2026-07-28T23-24-26.001Z",
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      "platform": "Win32",
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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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