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 0x4bacc28469492278d6c7390d66d62077b665c10e5f161fa2e9f7526022d7d321. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0df8e1a7-0aa0-4950-96ec-f7b409a611a7.json and https://artists.proofprofile.net/proofs/artist/0df8e1a7-0aa0-4950-96ec-f7b409a611a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Telmo Castro (El Capi de Ecuador) - En Vivo
Grupo Primitivo - Fonovisa Live Sessions
Sigue Girando La Rueda (feat. Grupo Primitivo)