David Woodcock (August 31, 1785 in Williamstown, Massachusetts – September 18, 1835 in Ithaca, New York)The New York Genealogical and Biographical Record, Volume 53 was an American lawyer and politici
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 0xb01698a8251a8d19ca0845d51101621db850077ae6b61cfde8ec5fdd751a204d. Chain 2 (Bitcoin): anchored in block 953941 (2026-06-16T11:51:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/215ebfd2-9660-4a64-a305-c31f2ab92ec4.json and https://artists.proofprofile.net/proofs/artist/215ebfd2-9660-4a64-a305-c31f2ab92ec4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).