Charles Bannister (1879 – August 1952) was an English footballer who played in the Football League for Manchester City and Lincoln City and in the Southern League for Swindon Town and Reading. A centr
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 0xcefb01b3f78051736d7688504e6f33313e8e1dba28807b5aa379f0572061dbeb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f381a7cd-e874-4f89-8316-4cf2dd1ea2d3.json and https://artists.proofprofile.net/proofs/artist/f381a7cd-e874-4f89-8316-4cf2dd1ea2d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).