David Staff (born 8 November 1979) is an English footballer who played in the Football League for Boston United. He is a coach at Brackley Town . Before joining Boston United in August 2004, Staff pl
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 0x187f8dd8182df76c0ef5c71a90b6da7c72d8114fe7470ae9d2a634713e595add. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3410881b-5fd4-4607-a779-b925a8846670.json and https://artists.proofprofile.net/proofs/artist/3410881b-5fd4-4607-a779-b925a8846670.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).