{"copyright_id":"0x496308af70296e5fad59c9735762c191cfee2abf0f5e50091cb0f75f3900cd88","name":"The Mozart Effect String Quartet","registered_at":"2026-06-20T13:23:30Z","symbol":"NIM1620013","token_address":"0x0fdf85cd86cff9c9dcb484ce05f7af8bfc4a2d0f","type":"artist","uuid":"b301ba6c-fc15-4ec5-bd9f-74b3fc337e0c"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496308af70296e5fad59c9735762c191cfee2abf0f5e50091cb0f75f3900cd88. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b301ba6c-fc15-4ec5-bd9f-74b3fc337e0c.json and https://artists.proofprofile.net/proofs/artist/b301ba6c-fc15-4ec5-bd9f-74b3fc337e0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).