was a Japanese violinist who had an international career as soloist and teacher. Early life Masuko Ushioda was born in Shenyang, Manchuria. Her parents were a well-educated, cosmopolitan couple: he
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 0x7b97ef851deb6461b28b26ecd5969925d67e7b93f76f1a772594cf31cc9579df. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85d6f14b-0ad3-439d-894c-2876947b2f27.json and https://artists.proofprofile.net/proofs/artist/85d6f14b-0ad3-439d-894c-2876947b2f27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sibelius: Violin Concerto, Op. 47 - Bruch: Violin Concerto No. 1, Op. 26
グラズノフ、バルトーク ＆ ストラヴィンスキー