Vice Admiral Christopher Angus Ritchie (born 16 January 1949) is a retired senior officer of the Royal Australian Navy, who served as Chief of Navy from 2002 to 2005. Early life Ritchie was born in
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 0xd5c0fae0c7f096451632c4323d14bd2bb0010ac80160ff0509633640a64f5b72. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/950e3570-65ac-41a3-85d9-5d7ade5dea97.json and https://artists.proofprofile.net/proofs/artist/950e3570-65ac-41a3-85d9-5d7ade5dea97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).