Nicolas Nöel (27 May 1746 – 11 May 1832) was a French surgeon. He studied medicine in Paris until 1776, when he joined George Washington in the United States’ fight for independence, performing surge
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 0x1e3d0d02ed7d12c562991871d01ab29b8adb585bb8fbbdc58e0db2385f21e8e9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2cb7357-afdd-4716-92a4-5f17315ae98d.json and https://artists.proofprofile.net/proofs/artist/d2cb7357-afdd-4716-92a4-5f17315ae98d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nicolas Noël, les livres des enfants du monde