Thomas Arnold (13 June 1795 – 12 June 1842) was an English educator and historian. He was an early supporter of the Broad Church Anglican movement. As headmaster of Rugby School from 1828 to 1841, he
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 0xa324756d41fc675abd53cea7c3c474bc25b37fa3cf03d098f2fc1074c9e1a56a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00a21ad3-47f8-4050-82b3-50c0d32d0547.json and https://artists.proofprofile.net/proofs/artist/00a21ad3-47f8-4050-82b3-50c0d32d0547.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).