A culprit, under English law properly the prisoner at the bar, is one accused of a crime. The term is used, generally, of one guilty of an offence. In origin the word is a combination of two Anglo-Fre
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 0xaa9ce67ac379d58079434f14f49f4bd9077944fff04668a228b3b9080b188374. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49e4c314-6cd5-4e05-b684-2f2065ad5cee.json and https://artists.proofprofile.net/proofs/artist/49e4c314-6cd5-4e05-b684-2f2065ad5cee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).