Terence Marne O'Neill, Baron O'Neill of the Maine, PC (NI) (10 September 1914 – 12 June 1990), was the fourth Prime Minister of Northern Ireland and leader (1963–1969) of the Ulster Unionist Party (UU
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 0x51f7cd0146e7a49fd77673c51a05f70d43ac701de7ef4ecab723de07ea179524. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96b12a2c-166a-4972-a99a-b7c8a108d519.json and https://artists.proofprofile.net/proofs/artist/96b12a2c-166a-4972-a99a-b7c8a108d519.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).