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 0xcc1f1a1392d0cfd6048e95b40ae7270a597ab8b998023ad8d23bc11ed2fc3375. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b7ea89e-998e-4eaa-8052-07185bad5e31.json and https://artists.proofprofile.net/proofs/artist/7b7ea89e-998e-4eaa-8052-07185bad5e31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Frankenstein: The Metal Opera Live (2014)
Joe Crist (Original Motion Picture Soundtrack)