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 0xb8ed51e9a1bb15d56377c42e48567ca5ab4507b48f2e660c1b9b63695ebc1d45. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90d62d6f-7ac3-4191-a93a-1afb063992e5.json and https://artists.proofprofile.net/proofs/artist/90d62d6f-7ac3-4191-a93a-1afb063992e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Walt Whitman (Original Motion Picture Soundtrack)
Which Way Is the Front Line from Here? (Original Motion Picture Soundtrack)
JFK (Original Motion Picture Soundtrack)
American Experience: Walt Disney (Original Motion Picture Soundtrack)
Claude Lanzmann: Spectres of the Shoah (Original Motion Picture Soundtrack)
Sabbath Queen (Original Motion Picture Soundtrack)