Lance Parkin is a British author. He is best known for writing fiction and reference books for television series, in particular Doctor Who (and spin-offs including the Virgin New Adventures and Factio
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 0xebdea8f2a3e8cdfd87400f286f2c2b239dc298ee86c0a53f052cf5c22efc3a20. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95f9e689-aeb4-442e-851b-9354c89e7431.json and https://artists.proofprofile.net/proofs/artist/95f9e689-aeb4-442e-851b-9354c89e7431.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).