Jonathan Peter Culshaw (born 2 June 1968) is an English actor, comedian and impressionist. He is best known for his work on the radio comedy Dead Ringers since 2000. Culshaw has voiced a number of ch
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 0x233eee3b172ed03aa52e3ec65212077a6cbbcbee2d109726821be46e50da0cba. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3ac4b83-aa7b-4367-8a68-b0c255c91a85.json and https://artists.proofprofile.net/proofs/artist/d3ac4b83-aa7b-4367-8a68-b0c255c91a85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).