Mitsuko Shirai (born 28 May 1947) is a Japanese mezzo-soprano and music professor.Alan Blyth, "Mitsuko Shirai", Grove Music Online Biography Born in Nagano, Shirai first trained in Tokyo before settl
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bea2850a9a84124d9365160cf1569aabd470fbffe2eb9e8b591e8f3745dc36d. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f29902a3-11b0-4e11-aefa-126b8dabe107.json and https://artists.proofprofile.net/proofs/artist/f29902a3-11b0-4e11-aefa-126b8dabe107.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Winterreise, Op. 89, D. 911: No. 21, Tauschung (Arr. T. Zimmermann and H. Holl)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb1068978e17398b4458bde3ca52b605eaf513260334fcfebd2dec4445e3756. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0904921.
Vocal Recital: Shirai, Mitsuko - Ullmann, V. / Eisler, H. / Komma, K.M. / Reutter, H. / Cornelius, P. / Jarnach, P. / Hauer, J.M. / Pfitzner, H.
5 Lieder, Op. 49: No. 4. Wiegenlied (Lullaby)
Takako Nishizaki Plays Suzuki Evergreens, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba0b268f6658c5bd250fdbdd8df6dd9c64eeb7bfaa5bffc51ea1d0b48e5c7ae. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190923510.