Jan Ladislav Dussek (baptised Jan Václav Dusík,Černušák, p. 271 with surname also written as Duschek or Düssek; 12 February 1760 – 20 March 1812) was a Czech classical period composer and virtuoso pia
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 0x4fbfa44714183c849a942e91b2366cbff1e7b73ea3062ec2e0e05eccc9769f40. 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/8db57f64-0bdc-451f-8acf-507ea3d334ec.json and https://artists.proofprofile.net/proofs/artist/8db57f64-0bdc-451f-8acf-507ea3d334ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dussek: Messe solomnelle in G Major, C. 256
Messe solomnelle in G Major, C. 256: V. Gloria
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 0x478bff3c24927e1d4da59eefe702bd35f1d8f58f225012cfe3ceebd5ef48cd60. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK22H2001105.
Dussek: Piano Concertos Op. 3, 14 & 49 (Hyperion Classical Piano Concerto 5)
Dussek: Piano Concertos Op. 1/3, 29 & 70 (Hyperion Classical Piano Concerto 1)
Dussek: Sonatas, Op. 35 & Op.69 No.3, Vol. 10
6 Piano Sonatinas, Op. 19/20: Sonatina in F Major, C. 90: Allegro quasi Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0255c47724cbc95c99fe8c6ed5a8db9a9d80317e3ddff957162fe2b6ec82df. 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/CH6542238885.
Sonatina in G Major, Op. 20, No. 1: I. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7ee75a301eab1869dae2f0336c0f218326e9d65cb9fd2aa18f3ebd160d4bc3. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/USL4R2174140.
Sonatina in G Major, Op. 20, No. 1: II. Rondo. Allegretto. Tempo di minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7c4ce1063fabaa8751534082cb88ace3fe20a4bcc4ba7d815620966c825bfa. 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/USL4R2174141.
Sonatina in C Major, Op. 20, No. 2: I. Allegreto quasi andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230ec2051416db7656f36e2c3a7b6e3c54c6a97b6d378aa1c548d24a5518880a. 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/USL4R2174142.
Sonatina in C Major, Op. 20, No. 2: II. Rondo. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c27fb2e46d2748c40255a3d0548097062b0023636fe9bb80ea5d416086c7ce9. 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/USL4R2174143.
Sonatina in F Major, Op. 20, No. 3: I. Allegro quasi presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b9402f8b73f5051602af546853276d22c8602b5b9b596db01db8725c62ecbf. 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/USL4R2174144.
Sonatina in F Major, Op. 20, No. 3: II. Rondo. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde080ea92f9fbdef54b100009a668867c7fb89a0f5fb1bb091f2549f83b5d70. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2174145.
Sonatina in A Major, Op. 20, No. 4: I. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d35254bb6f690eaafa45d1867e891543cf7ca79d4dd096935804e2cda2129e8. 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/USL4R2174146.
Sonatina in C Major, Op. 20, No. 5: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f4adbf1fea388edd935127400fd18cb3d488ade667fbcd85270e3135656be1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2174148.
Sonatina in C Major, Op. 20, No. 5: II. Rondo. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe339afa6405224aeaedfc38c88fa28be44a5f8ca5a66d51b8bd13b5ebcb06659. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USL4R2174149.
Sonatina in E-Flat Major, Op. 20, No. 6: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1533486b13172feeb3138a2aa4de941edf69e52e2f9728f7792e4ebcbeca95. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USL4R2174150.
Sonatina in E-Flat Major, Op. 20, No. 6: II. Rondo. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc569a93a74288a33000606e8eeb5fe67ddd037c9c88e94e1f8ba180551ce593. 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/USL4R2174151.
Dussek: Complete Original Works for Piano Four-Hands
Dussek: Complete Piano Sonatas, Op. 14 Nos. 1-3, Vol. 9
Dussek: Complete Piano Sonatas Vol. 8 Sonatinas
Dussek: Piano Sonatas, No. 26 in A-Flat Major & No. 28 in F Minor
Dussek: Complete Piano Sonatas, Op. 47 & Op. 64, Vol. 7
Piano Sonata No. 2 in C Major, Op. 9 No. 2: II. Larghetto con espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41150d5f77e328be6c5c33ce4acbd48c13f41cd4627c1bef617969838586ee82. 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/NLY331806360.
Dussek: Complete Piano Sonatas, Op. 18 No. 2 & Op. 45
Dussek: Concerto for Two Pianos & Chamber Works
Concerto for Two Pianos in B-Flat Major, Op. 63: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e036a46576f3c77a7e0f09faddec9d84b4e32f2ebaa614266f883a36b91d32. 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/FR50X1841601.
Concerto for Two Pianos in B-Flat Major, Op. 63: II. Larghetto sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13af2009f10f575793f71e09a181662a0f0ce36f193c434102fd77589bc6a3c8. 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/FR50X1841602.
Dussek: Sonatas, Op. 5 No.3, Op. 24, Op. 43 & Op.61, Vol. 4
Piano Sonata No. 3 in A-Flat Major, Op. 5, Craw 43: II. Rondo. Allegro non tanto, con spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af7fc99fb49d9e9e87949cb22cde5b5b51ae31f59a1ea1fa5904afe1f46f17a. 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/NLY331803376.
Dussek: Complete Piano Sonatas, Op. 44 & Op. 77
Dussek: Complete Piano Sonatas, Op. 10 & Op.31 No.2
Dussek: Sonatas, Op. 35 Nos. 1-3, Leçons
Dussek: The Complete Piano Sonatas, Vol. 2
Piano Sonata in C Major, Op.9 No. 2: I. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2254fb067fc5d8a0401b06dd35bfc3bf54959be52b037d05c3512ab07e11b89. 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/USV291477641.
Piano Sonata, Op. 70 'Le retour à Paris': I. Allegro non troppo ed espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88fc6f1156af4e84b62c725274dfb6320bc4f1e4b6f06d29bcb111c73d66cca. 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/USV291477664.
Dussek: The Complete Piano Sonatas, Vol. 1
Piano Sonata in B-Flat Major, Op. 23: I. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9784357f31b9981e47128976654d8bdee155e90e7144d105fa875edbacb252b. 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/QMDA61377854.
Piano Sonata in B-Flat Major, Op. 45 No. 1: I. Allegro cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ff8ab22f6f3fcd7c93f8f8c669cc515cf6690b23860c280e904d196be3a076. 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/QMDA61377868.
Piano Sonata in B-Flat Major, Op. 9 No. 1: I. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e509fa9b977b5e3b381c906f26149ac1130d96ba0ecc853da01f0065fcf06f6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QMDA61377880.
Piano Sonata in B-Flat Major, Op. 23: II. Pastorale - Allegro moderato con espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d96df1246b2cbe749133d8ea7042b3448386bd46cc1c64dfbdc0099ccccba1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMDA61377855.
Piano Sonata in B-Flat Major, Op. 45 No. 1: II. Adagio patetico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af1bfec553f700052f638622e10e715a26ec6e22973f5b5bf95a4212b9aa685. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QMDA61377869.
Piano Sonata in B-Flat Major, Op. 9 No. 1: II. Rondo - Allegretto grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec92b8ca653d89b09359c5163307b268e8d4e430189523c382ea3208d205c77. 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/QMDA61377881.
Piano Sonata in C Major, Op. 39 No. 2: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf832ebedeb1f7262ac07a10fff9771a7f31fc562901aef8e4c2645efad2811. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMDA61377856.
Piano Sonata in B-Flat Major, Op. 45 No. 1: III. Allegro da Ballo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099d58dbbddaed952b074ab3574adf869d526c1f9dae64ef4185b8b6d1e7b993. 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/QMDA61377870.
Piano Sonata in G Minor, Op. 10 No. 2: I. Grave - Adagio non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebeb0de64acb32b943a91aac70436aee921363d332e81688b638c6627b0eb28b. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QMDA61377882.
Piano Sonata in C Major, Op. 39 No. 2: II. Andante quasi larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb0493a04c792390556d439952b9d73f27a91fe259492382112d091f17344e3. 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/QMDA61377857.
Piano Sonata in G Major, Op. 45 No. 2: I. Larghetto sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a935a013da75eb8da6fc99575b379ba71a3aee36fef3fac91ac395dcb02c10c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QMDA61377871.
Piano Sonata in G Minor, Op. 10, No. 2: II. Vivace con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee40f2b3f4b1b51d1da362e89809d2cbcec7c5567d6191324615c31d01efdc69. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QMDA61377883.
Piano Sonata in C Major, Op. 39 No. 2: III. Rondo - Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7ecb4303141e6f1826beb79b2b94b565c40e079d1b3dce35fa858036302101. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QMDA61377858.
Piano Sonata in G Major, Op. 45 No. 2: II. Andantino con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec86d6fd8709162cc3449718a323dadfecbab49a5fbc8b2e5f7baa222f269f0. 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/QMDA61377872.
Piano Sonata in A Minor, Op. 18 No. 2: I. Agitato assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930efa4878864a837c2f901b4001629d003121ddc71594e6feb5858bd0346cac. 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/QMDA61377884.
Piano Sonata in D Major, Op. 47 No. 1: I. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa2d3ed86e34f34f37056bfb3b1881e29c1ce010b57d9ce75a1d12905cff7c1. 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/QMDA61377859.
Piano Sonata in A Minor, Op. 18 No. 2: II. Rondo - Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf7a74503c045319203fe1d452d6cb4536d108c491a21851f0b3463e797b6ec. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377885.
Piano Sonata in D Major, Op. 47 No. 1: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa8ebc66a0b4c7c39914e633ce968e5b768b39796d86c593ea3b8e3ae158870. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QMDA61377860.
Piano Sonata in D Major, Op. 45 No. 3: II. Larghetto con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c11f1694be601ea09eb71e2f4d8cc58577d71ca181e9c8a42ac4d3390c95c39. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377874.
Piano Sonata in D Major, Op. 31 No. 2: I. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9193af1f129938a9d4bc85d7c86d16610317a69c0428d82ae851d5b3f01251. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QMDA61377886.
Piano Sonata in D Major, Op. 47 No. 1: III. Rondo a la militare - Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64e5e2b126401f16dabebaccf50b6d5ee21893f5b6f4731e9d0492c9535cffc. 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/QMDA61377861.
Piano Sonata in D Major, Op. 31 No. 2: III. Allegro con espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad27231e701978e334c380750d99ff7f80cf3cb2315cd523ae047b91518f469. 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/QMDA61377887.
Piano Sonata in F Minor, Op. 77: I. Allegro moderato ma energico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572820848f38e4519ff05becfb08c28167e8fc78d9e86fb7d47f9c7fdfc633a6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMDA61377862.
Piano Sonata in E-Flat Major, Op. 44: I. Introduzione - Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eda4cb3153dc024417d2d94acc7941145fd6d7c3b2f75ab4550a03a403beca. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMDA61377876.
Piano Sonata in A Minor, Op. 18 No. 2: III. Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a6306d89732d4cda9bd2a3f0893436de91b0cd90bd90aaad103c3e0dcf7348. 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/QMDA61377888.
Piano Sonata in F Minor, Op. 77: II. Tempo di Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78ec141e712f9b484669b966a50d4d66b77c9d2e01af1024322ffc6837a5b62. 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/QMDA61377863.
Piano Sonata in E-Flat Major, Op. 44: II. Molto adagio e sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecc4c6ad7a43ecb4ea579e25f1b37d65a25b8aeb0f036c1ab8ad78cedbee11d. 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/QMDA61377877.
Piano Sonata in F Minor, Op. 77: III. Adagio non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2967783861fc5b386f944d3b423bf99e124c4b9e6fe60fdf363e489732694b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377864.
Piano Sonata in E-Flat Major, Op. 44: IV. Rondo - Allegro moderato ed espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0566e8313af44858d92694139dee6636c2ca4662b749a9590c0ede62f0e0a0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377879.
Piano Sonata in F-Sharp Minor, Op. 61: I. Lento patetico - Tempo agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02f08385ca2a795b76f4a5b4a7ff17967026917616321cedd106f4327e184bc. 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/QMDA61377891.
Piano Sonata in G Major, Op. 47 No. 2: I. Allegro ma moderato ed espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe834a6a5a5d1e962fa42dd889bcfbeb81266a518788a9e37af7247581620fd96. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377866.
Piano Sonata in F-Sharp Minor, Op. 61: II. Tempo vivace e con fuoco quasi presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d57c92457f6298cd829c322848e8a6810c20d88a87b94b623384676583a864f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377892.
Piano Sonata in G Major, Op. 47 No. 2: II. Rondo con espressivo - Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4397d6d52180e79d8d59d8e830433a3894c2b69292e1559a25a4ad40384ab97c. 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/QMDA61377867.
Dussek: Piano Concerto in F Major, Piano Concerto in B-Flat Major & Piano Sonata in A-Flat Major
Piano Concerto in B-Flat Major, Op. 40, "Military": I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0efa4ea8282c40a8ce000bdd16ae79b1fd519f9d812aa0edf7b31c3c0f9a38. 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/ITDQ70050664.
Dussek, J.L.: Duo Concertants, Op. 69, Nos. 1 and 3 / Sonata, Op. 61, "Elegie Harmonique"
J. L. Dussek: Piano Variations, Pieces, Fantasia
Quartet for Violin, Viola, Cello and Piano in E-Flat Major, Op. 56: II. Larghetto quasi andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d2b350c9fb87e894273a98ed24299eab066f66609643fee644b2cd20d485de. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/ATMA41200118.
Quintet for Violin, Viola, Cello, Double Bass and Piano in F Minor, Op. 41: III. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e68792d1df92467a614aec1ba72471dd1981177924f529b32fee630a7335728. 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/ATMA41200125.
Piano Works of Jan Ladislav Dussek, Vol. 1
Jan Ladislav Dussek: Streichquartette op. 60
Dussek, J.L.: Piano Sonatas - Opp. 9 and 77
Jan Ladislav Dussek: Duos for Harp and Pianoforte