Gavin Roberts (born 1984) is a Welsh rugby union footballer, currently playing at Centre for Caldy in National League 1. Roberts is one of the most prolific points and try scorers in National League
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 0x994e9f450b448ceafa8e5a7f94776f5fc0cd4acd35e20bcfc1f44940d1d6437e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9d92897-4976-4769-a666-b88fb62ca3ce.json and https://artists.proofprofile.net/proofs/artist/b9d92897-4976-4769-a666-b88fb62ca3ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Rieger Organ of St Marylebone Parish Church