Vincent 'Bushy' Parker(11 February 1918 – 29 January 1946) was an Australian Royal Air Force flying ace, a prisoner of war and a serial escaper. He participated in the Second World War. Parker emigra
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 0xf9d55539ca05331a103b46255be78e78c9aa31029c41827c0ced241cab7a5c7d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dbf8c3b-3037-4f97-a953-457f8313de42.json and https://artists.proofprofile.net/proofs/artist/5dbf8c3b-3037-4f97-a953-457f8313de42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).