{"copyright_id":"0x208c58af105db41c6753b8a6a7ee14fc3e5f5bda056bbafd7c1732e7362cf0cc","name":"Musique pour Travailler Musique De Fond","registered_at":"2026-06-20T03:43:21Z","symbol":"NIM1500694","token_address":"0xc302fbcfc2b6dc8c04623cde5cc87deaf5fa2c32","type":"artist","uuid":"9b14c0a6-b2cc-4cf9-b003-0a145da57e1e"}
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 0x208c58af105db41c6753b8a6a7ee14fc3e5f5bda056bbafd7c1732e7362cf0cc. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b14c0a6-b2cc-4cf9-b003-0a145da57e1e.json and https://artists.proofprofile.net/proofs/artist/9b14c0a6-b2cc-4cf9-b003-0a145da57e1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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