Matthew Jason Holmes (born 1 August 1969) is an English former professional footballer who played as a midfielder. He notably played in the Premier League for West Ham United, Blackburn Rovers and Ch
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 0x99806207e1b4dd59c7b6257e1f63bb9e6442aa8403cfc56d7301a417a0ffc36d. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b23a487-0f10-4e10-81bc-51efef357011.json and https://artists.proofprofile.net/proofs/artist/9b23a487-0f10-4e10-81bc-51efef357011.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).