Samuel Samuel (7 April 1855 – 23 October 1934) was a British businessman and Conservative Party politician. He sat in the House of Commons from 1913 to 1934, and had extensive investments in East Asia
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 0xc8f5bc3bd1cb853a4949c61269ea45ed6173876caafc174f0e002299990bbd39. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40a6e67f-d8e8-409f-8b88-09f282a0fef5.json and https://artists.proofprofile.net/proofs/artist/40a6e67f-d8e8-409f-8b88-09f282a0fef5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).