thumb|58 Holland Park Avenue, London W11 where PD James lived from 1984 to 2012 Phyllis Dorothy James White, Baroness James of Holland Park (3 August 1920 – 27 November 2014), known professionally as
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 0x3c11a76a9bb181a0831f83bd0ca130c38f3df22b543af76e812dc106fa43e749. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b978a0e1-773f-456e-b452-43856eba4a8b.json and https://artists.proofprofile.net/proofs/artist/b978a0e1-773f-456e-b452-43856eba4a8b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Ein Spiel zu viel (ungekürzt) [Ein Fall für Adam Dalgliesh]
Eine Seele von Mörder (ungekürzt) [Ein Fall für Adam Dalgliesh]
Ein unverhofftes Geständnis (ungekürzt) [Ein Fall für Adam Dalgliesh]