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 0x1b45102d05e4c0af3c3fad767c3a5bce686d4a621756a65ac42daa04a87d95ea. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f094b1f-1997-4104-bbeb-bc5334276758.json and https://artists.proofprofile.net/proofs/artist/0f094b1f-1997-4104-bbeb-bc5334276758.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Torito Oaxaca y su Musica Chilenas de Oro