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 0xfaaef80f9c28631af419db84771e84a4008b77d741cef3b6e810292a06b534e9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ff8ff9d-5005-4c42-8cbd-0a38e16a02db.json and https://artists.proofprofile.net/proofs/artist/0ff8ff9d-5005-4c42-8cbd-0a38e16a02db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Song #2 (One Fate Fraught Night Back In 91)