1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e62ab629d68e2c970a9f49695b92bd707145c58a9b0640573c2323faa63056. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cd3a945-d340-419c-a357-0b13639ed50e.json and https://artists.proofprofile.net/proofs/artist/5cd3a945-d340-419c-a357-0b13639ed50e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ballade Pour Rose (Dedicated To Vicente Amigo)