is a Japanese voice actress and singer. She is known for her roles as Nagi Hisakawa in The Idolmaster Cinderella Girls, Maina Ichii in If My Favorite Pop Idol Made It to the Budokan, I Would Die, Rie
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 0x9b48f51b63c5f090b15981fe4877af71944a512dab284a4b3ee8ce778b9f7e0a. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74b47c3b-63db-4d8a-87e3-bdde0981ec28.json and https://artists.proofprofile.net/proofs/artist/74b47c3b-63db-4d8a-87e3-bdde0981ec28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).