thumb|330x330px|, a modern guided-missile destroyer, escorting a reproduction of the 18th-century . A navy, naval force, military maritime fleet, war navy, or maritime force is the branch of a state's
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 0xa181324e465ccf28a2268d403d41de179209a3ae6703790df60f5e702b627736. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cec142d-09e3-4415-b408-4be7bd2ffa76.json and https://artists.proofprofile.net/proofs/artist/4cec142d-09e3-4415-b408-4be7bd2ffa76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).