Damian Welch (born 28 July 1982 in Reading) is a former Welsh Rugby Union player who played at lock. He represented Wales at Sevens in the 2008–2009 season. Club career Welch played for Westwood Wand
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 0x0abdd8af95597226f98237a7fc4a56e1005f2919fc808ae3396bf044abbef7c0. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d143d9a-8f66-4670-903a-3917fc8199e3.json and https://artists.proofprofile.net/proofs/artist/8d143d9a-8f66-4670-903a-3917fc8199e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).