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 0xe5a46034e09830a3900d3e135d7f260cd6e7b4a444b3d6634f89f54b098f5d1d. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e122d1d-112b-4344-bbeb-8e94cb6debd3.json and https://artists.proofprofile.net/proofs/artist/8e122d1d-112b-4344-bbeb-8e94cb6debd3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Concerto No. 4 in G Major, BWV 1049: I. Allegro
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 0x229c7f8ed3dc6c2bd5f79f99d12c4d732df11c6a3a5a08e4dca4ef54c1c170f1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580572711 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbdd2ef5f72f57ebef016cd6cebde41337072e739403059e6b813f2c3210ace. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330604467 — a six-check JSON result.
Flute Sonata in C Major, BWV 1032: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ee2bf1bb5ee943801b6ceda2729a4775f3284adece2130b3b74214e454fe0a. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000013 — a six-check JSON result.
J.S. Bach: Music for Recorder & Harpsichord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f992192f70d20fd8335165b27664c7356f28c0961c1a1473f55c2754fed384. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfba6b771b42f480fca258c35a48b88fd985a2af76f16e7cc0876214991e0c0c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000002 — a six-check JSON result.
Sonata in A Minor, BWV 1020: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ff9bf3ebbd973fd8516985b7936e43f66c8572650fba903f2da3a8e92d6736. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000003 — a six-check JSON result.
O Mensch, Bewein Dein Suende Gross in E-Flat Major, BWV 622
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8041f23638c1c84b7f956f76bdfa1fa3aae5e6ef79afa9216f707b129ba38734. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b42b739e9ed7dec090606726e2d33fc0f9238869bccf7444ce1faf64e224b00. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97385f972f3593019edeae8128c096c9e8f5be5ce0e77e5429fb8338ae4eb156. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000006 — a six-check JSON result.
Trio super Herr Jesu Christ, dich zu uns wend in G Major, BWV 655
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89dd961fa4db8c1b6d4846207edae2634f81d7a7deb4cc43b0c3781b9a12cf1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a4cfc077ee61feec62f0855cdd404de083f8504acad4ef16d382c768e0b5b. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000008 — a six-check JSON result.
Sonata in G Major, BWV 1039: II. Allegro ma mon presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe976eb06a98e4e86da27adba6fb9ccc436431aba5dc79880abaed78003fd47c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000009 — a six-check JSON result.
Sonata in G Major, BWV 1039: III. Adagio e piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2126c602bfeffc02c80ec814f30ea88f7cc8361b2c4cb81b1c2d409251dccf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cfdf57f16c5bd015e37b1732dbcdb17b739060a1a548891dc58441c0f2fa6b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ee2bf1bb5ee943801b6ceda2729a4775f3284adece2130b3b74214e454fe0a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332000013 — a six-check JSON result.
Boni, Brivio, Chaboud, Corelli, Tessarini, Valentini: Italian Flute Music of Early 18th Century (The Birth of Italian Transverse Flute Repertoire)
Telemann: Die Kleine Kammermusik, 6 Partiten, Concerto in B Minor
C.P.E. Bach: Complete Keyboard Variations
Marcello - Scipriani - Pergolesi - Geminiani - Martino: Sinfonie & sonate del settecento italiano per violoncello e basso continuo
Clementi: Sonate per Cembalo con accompagnamento di flauto e violoncello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715600574ca08dacde05e95b859be271f94306249f1defcff65420487b9e59e2. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106113 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3db202ae05942747acd190549ea310424bb5efd51eee2723898a1f1ad19180b. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40964da4b9447d75313528881fb29093e6df79aa5d46a910d335a0152b9c5be. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6792d6784b227f4e03b4a45ba075d92d4e58a9d928514717f637aa7ce7f6daf4. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106116 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cf21a93d448bd9b1f4f667b44eb5b33091c2876f47245acd1b9bbaef4f8a3f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106117 — a six-check JSON result.
Fantasia in D Minor, TWV 33: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b667dd8ce7961c4c286b9eaa457f8fe8e39aefffc03ec6fc54b41fd0875abf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106118 — a six-check JSON result.
Fantasia in E Major, TWV 33: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e10544274aef5e2c3c7788ad99a57bcd19bebd5fe2011e5e15d6114202d6c65. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106121 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac57dc024e9dfd209252fb25c28a2ff1fa318759ce98a5e79462eaa001fc7e64. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106122 — a six-check JSON result.
Fantasia in E Minor, TWV 33: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6502fdf8b62d06b4c74f85611810d06ca4c2b327783414166524183c0b00b4fe. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106124 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4921722f00abf08bf535bea6dc5034e9eea83bf87e4f43999a9ae4767dfbe7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106126 — a six-check JSON result.
Fantasia in F Major, TWV 33: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bb15ea835ff06248d3262c409051c7058311c676af636b0ad04616e54ab3da. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106127 — a six-check JSON result.
Fantasia in F Minor, TWV 33: I. Tempo di minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5ffbec8f9c141097c217507455cefaa28e8c30d45702c4c31fc171133869f9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106128 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b69ba747af4581a0873ac8011f6bccf64f031c65e1f737f81deb4cb374dd30. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106131 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d48198b24bcb08841c71688169629c7c8fc6b55c359886d81675e361a70336. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106132 — a six-check JSON result.
Fantasia in G Major, TWV 33: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f4458ebf98848812607e8556b9640098cea559a02e7ec50a17c823bb9f6a0f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106133 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a1b1126c90a85d2b4a03562888d9ab3969fef324e9bc32d3383795f691b282. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106134 — a six-check JSON result.
Fantasia in G Minor, TWV 33: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5309044a3f0e099a8a3f71fc636e8cd4269e9a30761a31edc83ea5cbe9df355. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106136 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9833b273c5c878e7a848a03e8c194992a253a6001c76d2575fe4cd5f463d4a75. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106138 — a six-check JSON result.
Fantasia in A Major, TWV 33: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46219649676e6e3a4aa1eace93f6d190b23a4c5753c92699a9bfe0bba60dbeeb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106139 — a six-check JSON result.
Fantasia in A Minor, TWV 33: 0: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bc16de18f5cd2003d3ac6ccdc95ccc103612a4065341a7fdba6dfbe3826300. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106140 — a six-check JSON result.
Fantasia in B-Flat Major, TWV 33: 1: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98b224514e353b07b04d4a3473eb0ecac253b058d26ba40f293cc8af92788ef. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106145 — a six-check JSON result.
Fantasia in B Minor, TWV 33: 5: II. Allegrement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071c139d56ea1f7e3af2f9f144fe14467b1d3e79d59f9244f4cde46c8f03639d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331106158 — a six-check JSON result.
Giustini: 12 Sonate da Cimbalo di Piano e Forte
Veracini: Dissertazioni sopra l'Opera Quinta del Corelli
Cimarosa: Complete Piano Sonatas, Vol. 3
Clementi, M.: Keyboard Sonatas With Accompanying Flute