Kensuke (written: 健介, 健輔, 謙介, 謙佑, 建介, 賢介, 賢輔 or 賢典) is a masculine Japanese given name. Notable people with the name include: , Japanese footballer , Japanese photographer , Japanese rugby union play
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4abdd6cda82c65ca6f9c5d02e20d062a3dc0847ed5019207e911c31fa8a227. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b48c396-6a08-4c7c-9403-c982574a0bbc.json and https://artists.proofprofile.net/proofs/artist/6b48c396-6a08-4c7c-9403-c982574a0bbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).