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 0xa90ed891ab37375242134e849bb3a95f559155f885582fa489ed715e5c8374e3. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1f21e0f-c671-45a7-aa46-3bbef9bebac4.json and https://artists.proofprofile.net/proofs/artist/a1f21e0f-c671-45a7-aa46-3bbef9bebac4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Ramón de Algeciras (Soleá) [Versión Especial 2021]
A Ramón de Algeciras (Soleá) - Versión Especial 2021