Patrick Anthony Keane (born 26 October 1952) is an Australian judge currently serving as a non-permanent judge of the Hong Kong Court of Final Appeal since 6 April 2023, after his retirement as a Just
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 0x2fd0854c98a1bdc4683b6e98f96e6e233f836003d0292fc1b12ae11eb9ff837e. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b24d0d91-bf0d-4a88-8dd6-016014e53810.json and https://artists.proofprofile.net/proofs/artist/b24d0d91-bf0d-4a88-8dd6-016014e53810.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).