A night fighter (later known as all-weather fighter or all-weather interceptor post-Second World War)Winchester 2006, p. 184. is a largely historical term for a fighter or interceptor aircraft adapted
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 0xc912ecba5be92581c898a80cb582042ec1d772d6e396c0117ce695d5c8eb1ab1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ee236a0-308a-4f4d-88a1-50b6816f67b8.json and https://artists.proofprofile.net/proofs/artist/8ee236a0-308a-4f4d-88a1-50b6816f67b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).