Albert Jacques Périlhou (2 April 1846 – 28 August 1936) was a French composer, organist, and pianist. Biography Born in Daumazan-sur-Arize on 2 April 1846, he was the only son of Jean-Justin Périlh
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 0xb79c70cb8483b2ad361d036337f0a74c46ecdf5d1a9c31a4dd18c2694f49d902. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d510f93-bd31-4781-a44c-31fa987844da.json and https://artists.proofprofile.net/proofs/artist/8d510f93-bd31-4781-a44c-31fa987844da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).