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 0xabcceb17e3f9c1548f5f1ee22689f2d7ad5a3b9e025acaf95e0e4f152b044149. 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/8ef2d5e6-b22f-4c01-9fca-0f93f59a7087.json and https://artists.proofprofile.net/proofs/artist/8ef2d5e6-b22f-4c01-9fca-0f93f59a7087.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ocean Paradise - Kiyoi & Eky Extended Remix