{"copyright_id":"0xbc0f1c4050801b92df39a9a8b156eabb3b400d75a27344c55b8225c4980116fe","name":"Metropolitan Opera Orchestra and Chorus","registered_at":"2026-06-15T02:45:32Z","symbol":"NIM0657538","token_address":"0xbfb9b385eed88bf7833f2339b9d99f84d7ef176e","type":"artist","uuid":"d3a2c81b-a5e2-4d7d-8dcc-1ffa66e9dba4"}
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 0xbc0f1c4050801b92df39a9a8b156eabb3b400d75a27344c55b8225c4980116fe. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3a2c81b-a5e2-4d7d-8dcc-1ffa66e9dba4.json and https://artists.proofprofile.net/proofs/artist/d3a2c81b-a5e2-4d7d-8dcc-1ffa66e9dba4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).