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 0xead06d902e11a10c7184b07fb9ad59c623aac2eb1585f9b768cde6f291a28670. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbc88d47-93a1-40d5-b22a-bf5eea03d077.json and https://artists.proofprofile.net/proofs/artist/bbc88d47-93a1-40d5-b22a-bf5eea03d077.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bosco (Original Motion Picture Soundtrack) - Side A