thumb|Stephen Kovacevich in 1970 Stephen Kovacevich (born October 17, 1940) is an American classical pianist and conductor.Adrian Room, Dictionary of Pseudonyms: 13,000 Assumed Names and Their Origins
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 0xfe192747388d80f0b42ed7ba98d58d2b1f0a05f816394d33704a90e2096ef269. 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/e9b20175-e3fa-4456-bda9-709f8b2f66e7.json and https://artists.proofprofile.net/proofs/artist/e9b20175-e3fa-4456-bda9-709f8b2f66e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beethoven: Cello Sonata No. 3 in A Major, Op. 69: I. Allegro, ma non troppo
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 0x38ed11189bcd2e020478186dfdcf1890339686c91b1e511c00340a830b64da04. 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/GBAYC2102712.
Beethoven: Cello Sonata No. 3 in A Major, Op. 69: II. Scherzo. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2fbc8623fad9d661155aebc60c6d60bcae6f272206d66f4d3af917b421bbd8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2102713.
Beethoven: Cello Sonata No. 3 in A Major, Op. 69: III. (a) Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819d82581f78101f6c9cd176ec8d9ccf5692ee2b98703eb940460f1093a7ec9d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2102714.
Beethoven: Cello Sonata No. 3 in A Major, Op. 69: III. (b) Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d026aa021659542d408ca2b701e89aad0a0f838ed6ff356ccfdfdd003c4ea9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2102715.
Beethoven: Cello Sonata No. 5 in D Major, Op. 102 No. 2: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7b84246a832543e232bb2bda3165701d8923f173a6a1e200b44c905d494479. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2102716.
Beethoven: Cello Sonata No. 5 in D Major, Op. 102 No. 2: II. Adagio con molto sentimento d’affetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a3b06ca7eaa2c9a6bfd1eccb6c401c21b30cebbe67987c4a684ce572f07c57. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2102717.
Beethoven: Piano Trios Nos. 4 & 5 and Cello Sonatas Nos. 3 & 5
Double Concerto in A Minor for Violin, Cello and Orchestra, Op. 102: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61650ec9310d5f12d097e9be8fe8ecc0eba2b04a47f5501796158c688ab7f137. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0718702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007a1f1dbb63f7f2bf5051514a57882cf5c36407afaf9aef8d4cbfe3b2f5e7aa. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6018071.
Debussy: Syrinx, Bilitis, La plus que lente - Ravel: Chansons madécasses & Prokofiev: Flute Sonata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe526b810e273426ae7c16d196c6214adfee37791eed012d144ae8bfb89111654. 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/GBAYC9902861.
Debussy: Épigraphes antiques, CD 139, L. 131: No. 1, Pour invoquer Pan, dieu du vent d'été (Arr. Lenski for Flute and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad09c97f9bb265ab82deb7ee4ce789011fc1cf544dbdb0c69772aca9bbb0379. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBAYC9902863.
Debussy: Épigraphes antiques, CD 139, L. 131: No. 2, Pour un tombeau sans nom (Arr. Lenski for Flute and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcb8cfc88c6f289c1d17346d46bdb2d7e92be39a8fc788636b37dfff97a9edd. 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/GBAYC9902864.
Debussy: Épigraphes antiques, CD 139, L. 131: No. 3, Pour que la nuit soit propice (Arr. Lenski for Flute and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc3916fd79ecd485d47021531f4c41a9b93b6d6deaed38050e367aea60ca7b3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAYC9902865.
Debussy: Épigraphes antiques, CD 139, L. 131: No. 4, Pour la danseuse aux crotales (Arr. Lenski for Flute and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10d25cd7c1bd402f5836632429028b9934f3e95df2da1d4b0db1ce67034d592. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBAYC9902866.
Debussy: Épigraphes antiques, CD 139, L. 131: No. 5, Pour l'Égyptienne (Arr. Lenski for Flute and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6827248dd028f5cc483b03322d880d476e42d2e5f8bda367f716494edca7e61e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBAYC9902867.
Debussy: Épigraphes antiques, CD 139, L. 131: No. 6, Pour remercier la pluie au matin (Arr. Lenski for Flute and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9f575da9f85f6a341ddf3d53f735e105ff522a4d918c13c15619f9f248263b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9902868.
Debussy: La plus que lente, CD 128, L. 121
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9a85252c050eaa693f5353559ed0242b32ca383e6e57888e58b3e4874f19d1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBAYC9902873.
Ravel: 3 Chansons madécasses, M. 78: No. 1, Nahandove
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212ae866ef9172198d5c1e7c62cd69a87bdf6f46313376059df36ec22abc0ced. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9902870.
Ravel: 3 Chansons madécasses, M. 78: No. 3, Il est doux de se coucher
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978772160d41facb71e923a2e052b29281f30aab397de5f9288d84f5611db070. 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/GBAYC9902872.
Prokofiev: Flute Sonata in D Major, Op. 94: I. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc2df98fe369c3a81467ee034ceedc1b70a002ee2d4502bae0c56b3ffb05005. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9902875.
Prokofiev: Flute Sonata in D Major, Op. 94: II. Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51896308d9def18f6c5114b93ecc0a5302374bf6f58d1e4bce59d059067ddca0. 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/GBAYC9902876.
Prokofiev: Flute Sonata in D Major, Op. 94: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbd3911e79938df6a390519441ec0ad51a75a5313a6841948eea4622f882cdb. 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/GBAYC9902877.
Prokofiev: Flute Sonata in D Major, Op. 94: IV. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0737903ef5896f82e3e68d66b480dd4242de70ec62933f0af0dc2ae7f8e0200. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9902878.
"A Selection" - Kovacevich plays Mozart, Beethoven & Chopin
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Tema (Vivace) - Variation I (Alla marcia maestoso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5478f5fb2dda04669666db4addc0337ac1c0afd51f97a165b951e9b16ff56cce. 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/NLA506800476.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation II (Poco allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2554becda39a534833e943d4f25a22def7ed5fdc8346b8633ec6a9ba3271a62d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLA506800477.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation III (L'istesso tempo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad6bf2400d44c4807f95fffcdc209ab75a6c809b0a4e45669fdd00c5634bd7a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800478.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation IV (Un poco più vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880aac4bd1141d0bbf626a521da2d6a44d62e63a77e589d25036b1ce924af135. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLA506800479.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation V (Allegro vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b040b471b6561cbe875d5165739f4ceacd3fabe38abf0eb195f688b4f2435fa. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800480.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation VI (Allegro ma non troppo e serioso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435fbdefeaad8a8e7a29a7a9178b60ee40396e7dbc09bae14eddc133e9979c2d. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLA506800481.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation VII (Un poco più allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a1f9bb86c89cf121ee48e404e036946d03dd781736a6a412ebde1bc980642e. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800482.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation VIII (Poco vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5245c7e700529ace33800c0bcd17370f6a0bbb9474efd3af0d468fbcb34e01. 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/NLA506800483.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation IX (Allegro pesante e risoluto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0804b2c6f06feb26528fe9105a9bb559b250f9bcc4fa910952efc23420fc4a00. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/NLA506800484.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation X (Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa571b37d954a7f2b48d5890616f9173fc109636711c7bf26c7fcfa853c8cfbef. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800485.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XI (Allegretto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d6629c5789d8017e13b21728e07297697037ffc8e8aef3ea7261d8a16f2138. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLA506800486.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XII (Un poco più moto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bc2d18b5a4f9a70607052bf3d37b001f59cd664bb7ee56449777e06f0ef97a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800487.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XIII (Vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf26bf011a47e86f6ac8066755012234e2430ca9fa971171dc70b00997d97783. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800488.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XIV (Grave e maestoso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed98cad95c57e001e6063b45a8765bddfe0f83923abfe9346fb57ecffa897503. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800489.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XV (Presto scherzando)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116aeea1bac70e62439a5db5631708f531eecc6ae9053f8d8f2ad37604b2774a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800490.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XVI (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f5a85c33ae96c56898debb1bfb5c2e1343e43b1e008553b50e63fe0803880. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800491.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XVII
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109deaf7f2d498db1cf8c6167f9d5bf3fecac73a385ce60c3f9f2cbcd50ee336. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/NLA506800492.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XVIII (Poco moderato)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XIX (Presto)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XX (Andante)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXI (Allegro con brio - Meno allegro - Tempo I)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXII (Allegro molto): Alla "Notte e giorno faticar" di Mozart
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXIII (Allegro assai)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXIV: Fughetta (Andante)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXV (Allegro)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXVI
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXVII (Vivace)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXVIII (Allegro)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXIX (Adagio ma non troppo)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXX (Andante, sempre cantabile)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXXI (Largo, molto espressivo)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXXII: Fuga (Allegro - Poco adagio)
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33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXXIII (Tempo di minuetto moderato, ma non tirarsi dietro)
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Andante And Five Variations For Piano Duet In G, K.501: Thema (Andante)
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Andante And Five Variations For Piano Duet In G, K.501: Variation 1
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Andante And Five Variations For Piano Duet In G, K.501: Variation 2
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Andante And Five Variations For Piano Duet In G, K.501: Variation 3
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Andante And Five Variations For Piano Duet In G, K.501: Variation 4
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Andante And Five Variations For Piano Duet In G, K.501: Variation 5
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Mazurka No. 41 in C sharp minor Op. 63 No. 3
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11 Bagatelles, Op. 119: 2. Andante con moto
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11 Bagatelles, Op. 119: 3. à l'Allemande
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11 Bagatelles, Op. 119: 4. Andante cantabile
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11 Bagatelles, Op. 119: 6. Andante - Allegretto leggiermente
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11 Bagatelles, Op. 119: 7. Allegro ma non troppo
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11 Bagatelles, Op. 119: 8. Moderato cantabile
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Bagatelles. Beethoven, Chopin, Schubert, Brahms & Debussy
Beethoven: 11 Bagatelles, Op. 119: No. 1 in G Minor, Allegretto
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Beethoven: 11 Bagatelles, Op. 119: No. 2 in C Major, Andante con moto
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Beethoven: 11 Bagatelles, Op. 119: No. 3 in D Major, À l'allemande
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Beethoven: 11 Bagatelles, Op. 119: No. 4 in A Major, Andante cantabile
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Beethoven: 11 Bagatelles, Op. 119: No. 5 in C Minor, Risoluto
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Beethoven: 11 Bagatelles, Op. 119: No. 6 in G Minor, Andante - Allegretto
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Beethoven: 11 Bagatelles, Op. 119: No. 7 in C Major, Allegro, ma non troppo
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Beethoven: 11 Bagatelles, Op. 119: No. 9 in A Minor, Vivace moderato
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Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 1 in D Major
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Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 2 in A Major
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Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 3 in D Major
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Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 4 in D Major
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Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 5 in B Minor
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Chopin: Waltz No. 6 in D-Flat Major, Op. 64 No. 1 "Minute"
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Chopin: Waltz No. 8 in A-Flat Major, Op. 64 No. 3
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Chopin: Waltz No. 9 in A-Flat Major, Op. Posth. 69 No. 1 "Farewell"
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Brahms: Variations on a Theme by Handel, Op. 24: Variation I
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Brahms: Variations on a Theme by Handel, Op. 24: Variation V. Espressivo
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Brahms: Variations on a Theme by Handel, Op. 24: Variation VI
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Brahms: Variations on a Theme by Handel, Op. 24: Variation XVIII. Grazioso
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Brahms: Variations on a Theme by Handel, Op. 24: Variation XIX. Leggiero und vivace
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Brahms: Variations on a Theme by Handel, Op. 24: Variation XX. Legato
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Brahms: Variations on a Theme by Handel, Op. 24: Variation XXI. Dolce
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Brahms: Variations on a Theme by Handel, Op. 24: Variation XXII
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Beethoven: Piano Sonatas Nos. 8 "Pathétique", 14 "Moonlight", 17 "The Tempest", 21 "Waldstein" & Bagatelles, Op. 126
Brahms: Waltzes, Op. 39; Rhapsodies, Op. 79; Klavierstücke, Op. 118
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16 Waltzes, Op. 39: No. 3 in G-Sharp Minor
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16 Waltzes, Op. 39: No. 6 in C-Sharp Major
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16 Waltzes, Op. 39: No. 7 in C-Sharp Minor
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16 Waltzes, Op. 39: No. 8 in B-Flat Major
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16 Waltzes, Op. 39: No. 15 in A-Flat Major
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16 Waltzes, Op. 39: No. 16 in C-Sharp Minor
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6 Piano Pieces, Op. 118: No. 1, Intermezzo in A Minor
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6 Piano Pieces, Op. 118: No. 2, Intermezzo in A Major
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6 Piano Pieces, Op. 118: No. 3, Ballade in G Minor
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6 Piano Pieces, Op. 118: No. 4, Intermezzo in F Minor
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6 Piano Pieces, Op. 118: No. 5, Romance in F Major
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6 Piano Pieces, Op. 118: No. 6, Intermezzo in E-Flat Minor
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Brahms: Piano Concerto No.1; Handel Variations
Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Bartók, Debussy, Mozart - Music For 2 Pianos
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Beethoven: Diabelli Variations - Bach: Partita No.4
Beethoven: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave - Allegro di molto e con brio
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Beethoven: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
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Beethoven: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": I. Largo - Allegro
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Beethoven: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Beethoven: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": II. Introduzione. Adagio molto
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Beethoven: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": II. Adagio
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Beethoven: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo. Allegro
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Beethoven: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": III. Rondo. Allegretto moderato - Prestissimo
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Beethoven: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto
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Beethoven: Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": I. Allegro assai
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Beethoven: Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": I. Das Lebewohl. Adagio - Allegro
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Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": II. Allegretto
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Beethoven: Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": II. Andante con moto
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Beethoven: Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": II. Abwesenheit. Andante espressivo
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Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": III. Presto agitato
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Beethoven: Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": III. Allegro ma non troppo - Presto
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Beethoven: Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": III. Das Wiedersehen. Vivacissimamente
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Beethoven: Piano Sonata No. 15 in D Major, Op. 28 "Pastoral": I. Allegro
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Beethoven: Piano Sonata No. 32 in C Minor, Op. 111: I. Maestoso - Allegro con brio ed appassionato
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Beethoven: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": I. Allegro
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Beethoven: Piano Sonata No. 15 in D Major, Op. 28 "Pastoral": II. Andante
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Beethoven: Piano Sonata No. 32 in C Minor, Op. 111: II. Arietta. Adagio molto semplice e cantabile
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Beethoven: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": II. Scherzo. Assai vivace
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Beethoven: Piano Sonata No. 15 in D Major, Op. 28 "Pastoral": III. Scherzo. Allegro vivace
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Beethoven: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": III. Adagio sostenuto. Appassionato e con molto sentimento
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Beethoven: Piano Sonata No. 15 in D Major, Op. 28 "Pastoral": IV. Rondo. Allegro ma non troppo
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Beethoven: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": IV. Introduzione. Largo - Fuga. Allegro risoluto
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Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo
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Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: II. Allegro molto
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Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (a) Adagio ma non troppo - Recitativo più adagio -
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Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (b) Adagio ma no troppo. Arioso dolente -
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Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (c) Fuga. Allegro ma non troppo -
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Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (d) L'istesso di Arioso -
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Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (e) L'istesso tempo della fuga. Poi a poi di nuovo vivente
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Beethoven: Piano Concerto No.5 - "Emperor"; Piano Concerto No.4
Schubert: Piano Sonata No. 21 D. 960, Moments Musicaux & Allegretto, D. 915
Schubert: Piano Sonata No. 21 in B-Flat Major, D. 960: I. Molto moderato
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Schubert: Piano Sonata No. 21 in B-Flat Major, D. 960: II. Andante sostenuto
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Schubert: Piano Sonata No. 21 in B-Flat Major, D. 960: III. Scherzo. Allegro vivace con delicatezza - Trio
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Schubert: Piano Sonata No. 21 in B-Flat Major, D. 960: IV. Allegro ma non troppo - Presto
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Schubert: Allegretto for Piano in C Minor, D. 915
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Schubert: 6 Moments musicaux, Op. 94, D. 780: No. 3 in F Minor
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto –
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": 1. Grave - Allegro di molto e con brio
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": 2. Adagio cantabile
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": 3. Rondo. Allegro
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Piano Sonata No. 31 in A flat, Op. 110: 3. Adagio ma non troppo - Fuga (Allegro ma non troppo)
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Beethoven: Piano Sonatas Nos. 1, 2 & 3, Op. 2
Beethoven: Bagatelles, Op. 119, Piano Sonatas Nos. 26 "Les Adieux" & 29 "Hammerklavier"
Beethoven: Piano Sonata No. 1 in F Minor, Op. 2 No. 1: I. Allegro
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Beethoven: Piano Sonata No. 1 in F Minor, Op. 2 No. 1: II. Adagio
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Beethoven: Piano Sonata No. 1 in F Minor, Op. 2 No. 1: III. Menuetto. Allegretto
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Beethoven: Piano Sonata No. 1 in F Minor, Op. 2 No. 1: IV. Prestissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214c40970147fd6f9ecfe61d11177ecd90ba0e7e50ada5c4664fa308d39e3cdd. 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/GBAYC0302178.
Beethoven: Piano Sonata No. 2 in A Major, Op. 2 No. 2: I. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4bc7fbb0189439c0ed9ff72baaa97792bf4945e0684ec247f2a715fa95dcf1. 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/GBAYC0302180.
Beethoven: Piano Sonata No. 2 in A Major, Op. 2 No. 2: II. Largo appassionato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc142617e465944bb5b1450fb39f16041a98a04665999ecc81e43b84a8a8fb86b. 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/GBAYC0302181.
Beethoven: Piano Sonata No. 2 in A Major, Op. 2 No. 2: III. Scherzo. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c98d968882943f71296943a6d537045bcc99c10ada3cc2193c3261fc4ffa25e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBAYC0302182.
Beethoven: Piano Sonata No. 2 in A Major, Op. 2 No. 2: IV. Rondo. Grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1658f9d3d5e1df3eb129ae675120b21c5881d3bafeda5823f4f6edaf86e61d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBAYC0302183.
Beethoven: Piano Sonata No. 3 in C Major, Op. 2 No. 3: I. Allegro con brio
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Beethoven: Piano Sonata No. 3 in C Major, Op. 2 No. 3: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79358550f35e621e3ca75485c50f4789fe3735522c80e9f023d5c8b5fe6df4c6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0203961.
Beethoven: Piano Sonata No. 3 in C Major, Op. 2 No. 3: III. Scherzo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140308741676bcd7540c70497618513bc9831c5c67b87008297f8d4112bd03ed. 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/GBAYC0203962.
Beethoven: Piano Sonata No. 3 in C Major, Op. 2 No. 3: IV. Allegro assai
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Beethoven: Piano Sonata No. 4 in E-Flat Major, Op. 7: I. Allegro molto e con brio
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Beethoven: Piano Sonata No. 4 in E-Flat Major, Op. 7: II. Largo, con gran espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb2bf8d9d2e72e9a4e1f7cce55f1285b9c7b28201778729d9b692aaaf62471e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBAYC9903447.
Beethoven: Piano Sonata No. 4 in E-Flat Major, Op. 7: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273a3afa5cd785d86614909d61bdf6da42be800c14d6f3c180dd3f88b66b8867. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903448.
Beethoven: Piano Sonata No. 4 in E-Flat Major, Op. 7: IV. Rondo. Poco allegretto e grazioso
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Beethoven: Piano Sonata No. 5 in C Minor, Op. 10 No. 1: II. Adagio molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5125a3c64fc5a5eadd27100dcdcdb674f5d41a8ae2377973e8ce454504d3490e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9802748.
Beethoven: Piano Sonata No. 5 in C Minor, Op. 10 No. 1: III. Finale. Prestissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269a898fae3ac49f7cca4a3971412d5ccc7242155e4632f234576b16c54fb2aa. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBAYC9802749.
Beethoven: Piano Sonata No. 6 in F Major, Op. 10 No. 2: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a8621f8305d748a85dec44d7810b53ca17b07be49d7eed126f60abf8fc84a7. 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/GBAYC9802751.
Beethoven: Piano Sonata No. 6 in F Major, Op. 10 No. 2: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa885bd13288a60744316310b74275e63d35a471117e775442d4814397d726839. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9802752.
Beethoven: Piano Sonata No. 6 in F Major, Op. 10 No. 2: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde561890ecfbf8ddac0e99f1adb6c073864dbb18cb020a38da9005a14f5eb38. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBAYC9802753.
Beethoven: Piano Sonata No. 7 in D Major, Op. 10 No. 3: I. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa219dcb5c0962acf3ded1174f65f842f22c28ebbb43e2bf21841def618e2bd19. 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/GBAYC9802755.
Beethoven: Piano Sonata No. 7 in D Major, Op. 10 No. 3: III. Menuetto. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbe54597d14582cb39d17da974edabc76768079fccb5432439139b0517db4dc. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBAYC9802757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdcf2a0489895d88361cf44fd120f0e782e4935bc681736a9dbba5ca787a178. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de585469fddaf1a82a6d2ace36cf46137bd327ea247e5e0ee396910beee5e40. 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/GBAYC9701014.
Beethoven: Piano Sonata No. 9 in E Major, Op. 14 No. 1: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf8f21bb4ff44785d925e090028bb52667f58834a80236bf198e58ca39367a2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701017.
Beethoven: Piano Sonata No. 9 in E Major, Op. 14 No. 1: III. Rondo. Allegro comodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c41b19bddaf641f942634c40455673b601fcfd508e2610bde69864405bd76fa. 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/GBAYC9701019.
Beethoven: Piano Sonata No. 10 in G Major, Op. 14 No. 2: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e95784f8ec25c460be12b410fa1293ef97d63769d565909458f47c6e012d347. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701021.
Beethoven: Piano Sonata No. 10 in G Major, Op. 14 No. 2: III. Scherzo. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcd0e6af3d76bea9fe2b8d8dcd1c221eb6ad6ea941864ad0e071f7e83101395. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBAYC9701023.
Beethoven: Piano Sonata No. 11 in B-Flat Major, Op. 22: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7913917d07f36bd6cf78a35f06db711a7a0d02d023b52d1b52ba9ea4c1548a8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBAYC9701025.
Beethoven: Piano Sonata No. 11 in B-Flat Major, Op. 22: II. Adagio con molto espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e381f634a3c4f0043d5235ea675fbd4403a9b0e3257276ef372b823a8086f0. 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/GBAYC9701026.
Beethoven: Piano Sonata No. 12 in A-Flat Major, Op. 26: I. (a) Andante con variazioni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01497ee208868aa1d1bbb16889b21ddf1fd6b70c37559a74c66d09fdaa2acd1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903642.
Beethoven: Piano Sonata No. 12 in A-Flat Major, Op. 26: I. (c) Variation II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daa649a95ee2d259a36c14ba75a46d9ba7e353d40afd5b33fd096f40f6aa4b0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903644.
Beethoven: Piano Sonata No. 12 in A-Flat Major, Op. 26: I. (e) Variation IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc2d13be3f5c58a862cb3f6c39086c303fd9c704ff8e3bc924b0fc8b5fc2391. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBAYC9903646.
Beethoven: Piano Sonata No. 12 in A-Flat Major, Op. 26: II. Scherzo. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb621853a8fdd4af0a93df3311e3771d2fba453fcfd3e74e676e7de578a321737. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903648.
Beethoven: Piano Sonata No. 12 in A-Flat Major, Op. 26: III. Marcia funebre sulla morte d'un eroe. Maestoso andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648dc43004341fe39c417b0175afc498a895a6ddc2bb2bd85cb02ae9f5ba0cea. 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/GBAYC9903649.
Beethoven: Piano Sonata No. 12 in A-Flat Major, Op. 26: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd04d8d9f8e1a4f5ab820fb5a576e05e01640541a36f7849e70ea62213ab8108. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBAYC9903650.
Beethoven: Piano Sonata No. 13 in E-Flat Major, Op. 27 No. 1: I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc403444dcb79cb890cff68710dc17a4dd36d27324b53a70192aa40b0390c85eb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903652.
Beethoven: Piano Sonata No. 13 in E-Flat Major, Op. 27 No. 1: II. Allegro molto e vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6754b286b9a8c5c2f88a158fba9defd1ee39d73ec62ac256c982c0d1cfcd5f6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903653.
Beethoven: Piano Sonatas Nos. 12, 13, 14 "Moonlight", 19 & 20
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56220e3070d9318caa6bc7f6682faa7ee36abe31afaccbf4a19eb2c8f64ccc41. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC9903658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b120f99c31b1aa02aa1d61a334c8807cb99df033eeb54aa096380aa76a7efe6. 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/GBAYC9903659.
Beethoven: Piano Sonata No. 20 in G Major, Op. 49 No. 2: I. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3d4dbabaf5bdca1794668bbe8b055640562e834a79d35ab0841123af607040. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903664.
Beethoven: Piano Sonatas Nos. 4, 22, 23 "Appassionata" & 25
Beethoven: Piano Sonata No. 25 in G Major, Op. 79: II. Andante
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Beethoven: Piano Sonatas Nos. 5, 6, 7 & 15 "Pastoral"
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String Quintet in A Minor, Op. 1: 1. Adagio - Allegro ma non troppo
Members of the Berlin Philharmonic Octet
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String Quintet in G, Op. 77: 1. Allegro con fuoco - Più mosso
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String Quintet in G, Op. 77: 2. Scherzo (Allegro vivace) - Trio (L'istesso tempo, quasi allegretto)
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String Quintet in G, Op. 77: 3. Poco andante
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Brahms: Klavierkonzert Nr.2, Op.83 - Klavierstücke, Op.76
Beethoven: Piano Sonatas Nos. 8 "Pathétique", 9, 10 & 11
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Beethoven: Piano Sonata No. 9 in E Major, Op. 14 No. 1: II. Allegretto
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Beethoven: Piano Sonata No. 10 in G Major, Op. 14 No. 2: II. Andante
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Beethoven: Piano Sonata No. 11 in B-Flat Major, Op. 22: III. Menuetto
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Beethoven: Piano Sonata No. 11 in B-Flat Major, Op. 22: IV. Rondo. Allegretto
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Beethoven: Piano Sonata No. 30, Op. 109 & Bagatelles, Op. 126
Beethoven: 6 Bagatelles, Op. 126: No. 5 in G Major, Quasi allegretto
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Beethoven: Piano Sonatas Nos. 16, 17 & 18, Op. 31
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Beethoven: Piano Sonatas Nos 27, 28 & 32
Beethoven: Piano Sonatas Nos 21 "Waldstein", 24 "À Thérèse" & 31
Piano Concerto No. 1 in C Major, Op. 15: I. Allegro con brio
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Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
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Schubert: Piano Sonata No. 21 in B-Flat, D. 960
Brahms: Klavierstücke, Op. 119; Fantasien, Op. 116; 3 Intermezzi, Op. 117
7 Fantasien, Op. 116: No. 4, Intermezzo in E Major
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Brahms: 4 Ballades; Scherzo, Op. 4; 8 Piano Pieces
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Piano Concerto No. 20 in D Minor, K. 466: III. Rondo. Allegro assai
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Piano Concerto No. 23 in A Major, K. 488: II. Andante
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Piano Concerto No. 21 in C, K.467: 1. Allegro maestoso
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Piano Concerto No. 21 in C, K.467: 2. Andante
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Piano Concerto No. 21 in C, K.467: 3. Allegro vivace assai
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Piano Concerto No. 25 in C, K.503: 1. Allegro maestoso
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Piano Concerto No. 25 in C, K.503: 2. Andante
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Piano Concerto No. 25 in C, K.503: 3. Allegretto
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Piano Concerto in A Minor, Op. 16: II. Adagio
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Piano Concerto in A Minor, Op. 54: I. Allegro affettuoso
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Stravinsky: Concerto for Piano and Wind Instruments; Bartók Piano Concerto No. 2
Mozart: Piano Concerto No. 21 in C, K.467: 2. Andante
Klaviermusik 50 Meisterwerke – Klassik die man hören muss
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Grande valse brillante in E-Flat Major, Op. 18
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Piano Sonata No. 8 in C Minor, Op. 13 'Pathétique': II. Adagio cantabile
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Britten: Cello Sonata in C Major, Op. 65: II. Scherzo. Pizzicato
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Debussy: Clair de lune and Other Masterpieces
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