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 0x19662ab1a32d19d25250da88ba643e0126286d44b03850fda97fba8515b2330e. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79bf1c1d-28ff-4995-acf0-7a610e1e6f54.json and https://artists.proofprofile.net/proofs/artist/79bf1c1d-28ff-4995-acf0-7a610e1e6f54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ALMORZANDO CON MIRTHA LEGRAND Y FER PEÑA