Marie-Josée Riel also known as Emjay (born December 9, 1974) is a Canadian eurodance musician. Musical career After fronting a local Ottawa band for several years, she recorded a solo project in 1994
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 0xf38f2fdcd77ae3396c021b4dfdf5cc45389ebc7b65d518bddffc83ca5fdb4cc5. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c56792f5-1918-4e53-b1a8-4f109aa536fe.json and https://artists.proofprofile.net/proofs/artist/c56792f5-1918-4e53-b1a8-4f109aa536fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).