Fernando Otero is an Argentine pianist, vocalist, multi-instrumentalist and composer. His first contact with music was receiving vocal lessons from his mother, Elsa Marval, an internationally acclaim
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 0x660bb8ea5add492d2288289ff4b25da69d9738c0ad82fbcec1ad5ba0619eb0cc. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/547520ce-7341-4630-b08b-fb3f3adb58d3.json and https://artists.proofprofile.net/proofs/artist/547520ce-7341-4630-b08b-fb3f3adb58d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ritual (Original Motion Picture Soundtrack)
Enigma (Original Motion Picture Soundtrack)