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 0x49da0436830889d620afeba24c4ca48d3c01420b1dd1ca6b0743d43223314997. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb85f759-0164-4ced-bc9d-70098663b959.json and https://artists.proofprofile.net/proofs/artist/eb85f759-0164-4ced-bc9d-70098663b959.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
American Pie 2 (Music From The Motion Picture)