Sir Thomas Farmer (10 July 1940 – 9 May 2025) was a Scottish businessman who founded the Kwik Fit chain of garages and owned the Scottish football club Hibernian. Sir Tom was Chancellor of Queen Marga
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 0xfa0b77d66c5b9ca09324b27acf066acddfb3c1b9b7be584236a22a6c4bbc5b3b. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f090d8e3-011a-4fc2-b445-a2b9b58c6700.json and https://artists.proofprofile.net/proofs/artist/f090d8e3-011a-4fc2-b445-a2b9b58c6700.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).