Last Orders is a 1996 novel by British writer Graham Swift. The book won the 1996 Booker Prize. In 2001, it was adapted for the film Last Orders by Australian writer and director Fred Schepisi. Plot
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 0xcc855724f07986b25d422c56dc3ef45787487f8fed4ec98c1de9a14062908668. Chain 2 (Bitcoin): anchored in block 953962 (2026-06-16T15:03:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26e6607a-4fba-469c-bbf0-f00487770355.json and https://artists.proofprofile.net/proofs/artist/26e6607a-4fba-469c-bbf0-f00487770355.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).