Tom Clark may refer to: Sportspeople Tom Clark (cricketer, born 1924) (1924–1981), English cricketer for Surrey Tom Clark (cricketer, born 2001), English cricketer for Sussex Tom Clark (footballer) (
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 0x1cfbdd88bf626741e8ab62c002ba3c73db1ab6bc2a9bdfc84d2b5a8cbc71853c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e10f5ff2-ed1c-493a-865f-4ea93c5dd0b1.json and https://artists.proofprofile.net/proofs/artist/e10f5ff2-ed1c-493a-865f-4ea93c5dd0b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dry Bar Comedy Presents Tom Clark: I'm a Rescue