Gethin Clifford Jones (born 12 February 1978) is a Welsh television presenter. He was an active rugby union player while at Manchester Metropolitan University and, after graduation, he began his telev
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 0x83a8a2d0fb5b72879da624f6a2b4a658eb5f5710c8b1042d4e338d895f9c2e41. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cfdb81e-9c6c-44e4-b76f-bce96318f5a0.json and https://artists.proofprofile.net/proofs/artist/0cfdb81e-9c6c-44e4-b76f-bce96318f5a0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.