thumb| Thierry Huillet (born 21 July 1965) is a French pianist and composer of classical and contemporary classical music. As pianist Born in Toulouse, Huillet won first prize at the Conservatoire
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 0x90e8dd9301af2c03b0303122a163ceea5dbccfcc9107d4ab798dbc0ddbc159bd. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc27fcc7-1304-44d6-95f4-ccb3ee3c38d3.json and https://artists.proofprofile.net/proofs/artist/fc27fcc7-1304-44d6-95f4-ccb3ee3c38d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kunc: Sonate pour violon et piano, Pièce pour alto et piano, Simples chansons pour piano et orchestre de chambre