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 0xf1ef566afaab35f90b2b44d92347b4bf93fa7aafc6c7996f5079a21cef9aa86a. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fd3edf0-bd9d-49d2-985d-86d39e36fe99.json and https://artists.proofprofile.net/proofs/artist/6fd3edf0-bd9d-49d2-985d-86d39e36fe99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popurrí: Dame la Luz / Honduras / Maldad - En Vivo