200px|thumb|right|Vueltas harbour thumb|right|The beach of La Calera Valle Gran Rey is a municipality in the western part of the island La Gomera, in the province of Santa Cruz de Tenerife of the Can
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9bfadc6d04f9c322714de762e86e41c03997f523279168b8d2d7facf2cf592. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82559391-f40d-4240-9b66-a46844fa1d24.json and https://artists.proofprofile.net/proofs/artist/82559391-f40d-4240-9b66-a46844fa1d24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).