is a very common feminine Japanese given name, not to be confused with Kiyoko. Written forms The final syllable "ko" is typically written with the kanji character for child, 子. It is a common suff
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 0x380ffbb927b1dc3122f65da1a55e7fcd3c82f8c39cbc0c9619ba28a5e23ab341. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be10653d-3153-4ed5-91a2-3811c89feeef.json and https://artists.proofprofile.net/proofs/artist/be10653d-3153-4ed5-91a2-3811c89feeef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).