Trevor Alec Jones (12 August 1924 – 20 March 1983) was a British Labour Party politician who served as Member of Parliament (MP) for Rhondda West from 1967 to 1974 and Rhondda from 1974 until his deat
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 0xef0f23d4460a07416e2e75f13c1ff2c1d2c4c9768c7a6ed6f28092486f142500. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f12bfc13-a71a-4810-a424-55054d9bb58f.json and https://artists.proofprofile.net/proofs/artist/f12bfc13-a71a-4810-a424-55054d9bb58f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).