, better known as , is a Japanese enka singer. She made her debut in 1970, but only began to be recognised in 1985, after changing record company, releasing her hit single (道頓堀人情), which went on to se
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 0x066421d0ecb966ade4d6cd58d9fdb2df68b3e49af41f0dbceb5baebebbeb1458. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a531bd34-318c-4a68-b22e-9a19c519f32f.json and https://artists.proofprofile.net/proofs/artist/a531bd34-318c-4a68-b22e-9a19c519f32f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).