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 0xcaaf72390bc8e0e84f80f44ac13e8421776b69d84abf968111a42c8d8b87ac03. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13faae9f-de36-4f6e-9b67-1252a951cfef.json and https://artists.proofprofile.net/proofs/artist/13faae9f-de36-4f6e-9b67-1252a951cfef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Couldn't Do Better (Official Timeless 2022 Anthem)