Notwithstanding is a short story collection by British author Louis de Bernières. Published in 2009, it was inspired by Hambledon, the Surrey village in which he grew up during the 1960s and 1970s.htt
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 0xbf4f8f7a0b930566066fea584c827e8f0135df545cad7f90792753c43ef478f9. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bf42dd8-43af-4a29-937d-d31aba378b37.json and https://artists.proofprofile.net/proofs/artist/3bf42dd8-43af-4a29-937d-d31aba378b37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).