is a Japanese classical pianist. She was a finalist at the XVII International Chopin Piano Competition and won 4th prize at the subsequent XVIII International Chopin Piano Competition. Biography thu
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 0x139731c76608975784f563b2a45a52ae751a6d824abab2ed61c49eea15d48f46. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7a91e16-0db1-4a72-ad1b-3420bbde1926.json and https://artists.proofprofile.net/proofs/artist/f7a91e16-0db1-4a72-ad1b-3420bbde1926.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aimi Kobayashi's Debut: Bach, Beethoven & Chopin
Beethoven: Piano Sonatas Nos 8 & 23 - Schumann: Kinderszenen
Chopin: Piano Sonata No. 2 - Liszt: Dante Sonata & 3 Petrarch Sonnets
Chopin: 24 Preludes, Op. 28: No. 4 in E Minor
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8548e7e7bb349c0b412d5f2575ccbc93f176e1e2805b760736e8b7dbaa44c2bd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC2101109.
Schubert: 4 Impromptus, Op. 142, D. 935: No. 1 in F Minor
Schubert: Sonata in C Minor, D. 958, 4 Impromptus, D. 935 & Rondo, D. 951
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00447087bcbe6631af34d287d8696f4e9033ac211571cdbf92719e6bf6d5ac3f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAYC2400849.
Schubert: 4 Impromptus, Op. 142, D. 935: No. 2 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbc17ff5bff6e2b2a58075011dd7a97500ff3ff9115afe5f9e75444a5d1e8ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC2400850.
Schubert: 4 Impromptus, Op. 142, D. 935: No. 3 in B-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa5d31961477644fa7f689622ebe510fb4e19214953eaa15c536d2f3eb713cd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:52:40Z), 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/GBAYC2400851.
Schubert: 4 Impromptus, Op. 142, D. 935: No. 4 in F Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e10d51a189bae0a3015af38a3fe10a77d52fb13468bc698cc08e101acf3a79e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC2400852.
Schubert: Piano Sonata No. 19 in C Minor, D. 958: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f978d10944817c316ec19757b04edbd4b7884f6ab2385244feb263f6e39c6f. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBAYC2400853.
Schubert: Piano Sonata No. 19 in C Minor, D. 958: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713949b4c769777c86a92c56009bb40cc609d6b138cfc856e6f36740fb66ee18. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYC2400854.
Schubert: Piano Sonata No. 19 in C Minor, D. 958: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d96c14d68319548a6b6360d9c4916bb6ed8b45dcb0e0f792d64c4624ae41f4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBAYC2400856.
Liszt: 12 Lieder von Franz Schubert, S. 558: No. 7, Frühlingsglaube
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a8f5d177377b2f022374f123fcc6d9c7c0e3da4a5f61946cd41132a0118a22. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC2400858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892bb974d8bbd97fd35fa60aef21e54f17139273138352b1208c003a0932807c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC2400857.
Chopin: 24 Preludes, Op. 28: No. 15 in D-Flat Major "Raindrop"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f0073bfe881051c1f8ba991d7ebcc8bf5304a882806011263b662f1f7837a7. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBAYC2101120.
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
Chopin: 24 Preludes, Op. 28: No. 17 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41200058e904ba6a5edbe9508b8245441eeb05e9942dcacac8a2b72519d1b45e. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/GBAYC2101122.
Schubert: Piano Sonata No. 19 in C Minor, D. 958: III. Menuetto. Allegro - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcfe608aba330da22d4143747957b6bed6951e49a1adeaa117fc38ca2ed06da. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBAYC2400855.
Liszt: Franz Schuberts geistliche Lieder, S. 562: No. 1, Litaney
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d64b42e9830fd08811240dfa3a2abe8c6057f4a05fc51e8a1eb3cbc794d77a. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GBAYC2400859.