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 0xd47589cfbf3b4dc0a912f85188a77f0e82bfd3491617392f109ffbe0035ad9ab. 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/b8fcaf9e-ca5e-496e-8978-460a3882f037.json and https://artists.proofprofile.net/proofs/artist/b8fcaf9e-ca5e-496e-8978-460a3882f037.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mariliendre. Capítulo 1 (Banda Sonora Original)
La Mariliendre de España (Banda Sonora Original)
Mariliendre. Capítulo 2 (Banda Sonora Original)
Mariliendre. Capítulo 3 (Banda Sonora Original)
Mariliendre. Capítulo 4 (Banda Sonora Original)
Mariliendre. Capítulo 5 (Banda Sonora Original)
Mariliendre. Capítulo 6 (Banda Sonora Original)