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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789b96746d19e323378e5e5d46223bdb07bf80b3f905b5d7afeffe0dce7419f5. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1a20665-04ad-46ae-94ec-1c52b2396831.json and https://artists.proofprofile.net/proofs/artist/d1a20665-04ad-46ae-94ec-1c52b2396831.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Voler (Original Motion Picture Soundtrack)
Todo es de Color (Original Music from the Motion Picture)
Malti (Original Motion Picture Soundtrack)
Daffodils (Original Motion Picture Soundtrack)