Sophie Vaillancourt (born February 18, 1986) is a Canadian singer, model, and teacher. She is known for competing in the TV show Star Académie and for working as one of the models on the set of Le Ban
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 0xb0a791be1c1af859a5a399fdf544c5a78898212ed472bd8b2beb2c09a6911309. Chain 2 (Bitcoin): anchored in block 953895 (2026-06-16T05:46:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e8692b3-37ec-4445-8e0a-3f2721d0de5f.json and https://artists.proofprofile.net/proofs/artist/0e8692b3-37ec-4445-8e0a-3f2721d0de5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).