{"copyright_id":"0x1570ceeeef52c9a1e475539a7047ed8fcd9c041ed9b6918a1a73c0222d548a94","name":"Sociedad Coral Polifónica de Pontevedra","registered_at":"2026-06-20T09:20:31Z","symbol":"NIM1577001","token_address":"0xfdc9b772eb0a7b63482e9cc0c2ab3b7d6d6c1fb1","type":"artist","uuid":"aa4f4696-c76f-4231-8bb8-cdf64bca57f8"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1570ceeeef52c9a1e475539a7047ed8fcd9c041ed9b6918a1a73c0222d548a94. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa4f4696-c76f-4231-8bb8-cdf64bca57f8.json and https://artists.proofprofile.net/proofs/artist/aa4f4696-c76f-4231-8bb8-cdf64bca57f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).