was a Japanese actress, voice actress and singer. Her debut role was as a preschooler on Urusei Yatsura. She was better known as the voice of Momoko "Maruko" Sakura, the titular character in the long
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 0x713673c30ee9740eca951463f961201622b6aac4c3a3cfffd456112356dfe7d8. 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/c443bda3-afa6-4084-9ab1-1398cc18d15a.json and https://artists.proofprofile.net/proofs/artist/c443bda3-afa6-4084-9ab1-1398cc18d15a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).