Nathalie Cloutier is a Canadian film producer, associated with the National Film Board of Canada.Sylvie Mousseau, "Studio Acadie de l’ONF: pour une plus grande diversité des oeuvres". L'Acadie Nouvell
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 0x8ae36616f345e5eb07d5ff11bc45fa68a81a9981513eaef399b0562553c55f72. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6919a3e1-e196-4736-a72b-98900985eae6.json and https://artists.proofprofile.net/proofs/artist/6919a3e1-e196-4736-a72b-98900985eae6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).