, known professionally as , is a Japanese actor and singer. He won the Japan Academy Film Prize for Outstanding Performance by an Actor in a Leading Role for the film Wilderness. Early life Suda wa
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 0x65c2513dd4b881ff1f12a85f9cd534849517a981059b689025e65104e505c793. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d47b31bf-0057-4481-9b51-d4bc40df1747.json and https://artists.proofprofile.net/proofs/artist/d47b31bf-0057-4481-9b51-d4bc40df1747.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.