King Rat may refer to: Arts and entertainment King Rat (1962 novel), a novel by James Clavell set in World War II King Rat (film), released in 1965, based on the James Clavell novel King Rat (1998
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 0x3bf172273cfc032a446ea3644859fbd969c8a47e442162770ea90bea81114f4a. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/101ac7f6-c961-42df-acc4-8f5d4847491b.json and https://artists.proofprofile.net/proofs/artist/101ac7f6-c961-42df-acc4-8f5d4847491b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).