Henry Park (2 March 1744–5 – 28 January 1831) was an English surgeon. Biography Park was the son of a Liverpool surgeon, was born in that town on 2 March 1744–5, and received his early education unde
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 0x70888bfa9d1ff2bae7f0364b3a438435858e89fc70eb8e85769e364b4974cf44. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/889112aa-f7f9-4249-a65e-6923a57eba37.json and https://artists.proofprofile.net/proofs/artist/889112aa-f7f9-4249-a65e-6923a57eba37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).