Major General Cedric Maudsley Ingram "Sandy" Pearson, (24 August 1918PEARSON, Cedric Mandsley Ingram, memorial.act.gov.au – 7 November 2012) was an Australian Army officer. He was a Commander of Aust
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 0xaea4f8bd9e94acd47c350422dfa86e3dcb0fdce3f4d47433cb8aa085f2e73c82. 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/780d95f8-23f3-472d-8cb0-54ee6d705068.json and https://artists.proofprofile.net/proofs/artist/780d95f8-23f3-472d-8cb0-54ee6d705068.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).