François Ovide (born in Rouen, October 1952; died in Rouen, 29 May 2002) was a French guitarist, best known for his longstanding collaborations with Albert Marcoeur and with John Greaves. Ovide grew
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 0x608682e41e76a078e1ea2ad313b92c48e3a8cfd2d53df77a8bbb5eea29f3754a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed3cd3c2-2def-48d3-8a04-52271b98b115.json and https://artists.proofprofile.net/proofs/artist/ed3cd3c2-2def-48d3-8a04-52271b98b115.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).