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 0xcf356d30fccb6fc8b01e167edda6f77f1b9c696c7701bd67b1a847af819ac16b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcdedbb4-fdeb-4c31-86cf-89fc48d14dea.json and https://artists.proofprofile.net/proofs/artist/fcdedbb4-fdeb-4c31-86cf-89fc48d14dea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
San Sebastian, Tony Noah, Sylvion - Extended Mix
Famous Classical Guitarists, Vol. 4 (1925 - 1935)
Ibiza Winter Island 2021 (The House Edition)
21 Preludios vascos: No. 6, Onazez! - Dolor (Arr. for Guitar by Jodacil Damasceno)
Je suis un balancier - San Sebastian Remix
Verano de Piano - San Sebastian Club Mix