Pete Malkin is a London-based theatre and film sound designer. He has worked extensively with the directors Clint Dyer and Simon McBurney, and won a Tony Award for his work on Complicité's The Encount
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fc0386f594463477539862f801ab9f9aefae3b980fe41b0caec852ce036105. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e92059c4-4e7c-48e5-ac78-832cdaca043b.json and https://artists.proofprofile.net/proofs/artist/e92059c4-4e7c-48e5-ac78-832cdaca043b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).