Charles George Gamble (1868 – 9 February 1934) was an Anglo-Irish lawyer. He was a member of the short-lived Senate of Southern Ireland. Life Gamble was the eldest son of Major George Francis Gamble
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 0x5cacabefa57046aa4d1963633e66cc3dce0b5c51c63f099beab1007c7be96ba9. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d31d5a48-7f2c-458e-ba02-b561e53be214.json and https://artists.proofprofile.net/proofs/artist/d31d5a48-7f2c-458e-ba02-b561e53be214.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).