Charles, Charlie or Chuck Thomas may refer to: Military Charles Thomas, Prince of Vaudémont (1670–1704), fieldmarshal in the Austrian army Charles Thomas, Prince of Löwenstein-Wertheim-Rosenberg (178
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 0xd298605002e7b93d73d1157164e997d4126f6cc1537c4e928f4d583b35c9e6d9. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52b9a7dc-2d89-4a51-929f-466a077ff908.json and https://artists.proofprofile.net/proofs/artist/52b9a7dc-2d89-4a51-929f-466a077ff908.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
John Charles Thomas: An American Classic