() is a fictional character and the protagonist of the Fist of the North Star manga series created by Buronson and Tetsuo Hara. In the story, Kenshiro is the rightful successor to an ancient art of a
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 0x54369eb0436e4164384f25dfa15c98ac060401f994c5d6b193a9e5cbb100b28f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/def1af0d-0384-4733-b1ef-b8f0efdc8309.json and https://artists.proofprofile.net/proofs/artist/def1af0d-0384-4733-b1ef-b8f0efdc8309.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).