François Maurice Le Sieur is a Canadian musician and composer. He has been nominated for awards for television and film music in his native Canada, that include garnering seven Gemini award wins and s
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 0xd5c7dc0421ddd0c2bd4f9864f6b08e4ca6ae20204fd7791b5fd207c5f9e50c35. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa679c2b-8a5e-49da-8d68-1e31cfc960db.json and https://artists.proofprofile.net/proofs/artist/aa679c2b-8a5e-49da-8d68-1e31cfc960db.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Musique De Film (Le Cinema d'Emile Gaudreault), Vol. 1