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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe192747388d80f0b42ed7ba98d58d2b1f0a05f816394d33704a90e2096ef269. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ed11189bcd2e020478186dfdcf1890339686c91b1e511c00340a830b64da04. 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/GBAYC2102712.
Beethoven: Piano Trios Nos. 4 & 5 and Cello Sonatas Nos. 3 & 5
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. 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.
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 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/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 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/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 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 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 XVI (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f5a85c33ae96c56898debb1bfb5c2e1343e43b1e008553b50e63fe0803880. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:45:14Z), 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 XIX (Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbc0b802386a9a355584be39742e8148d192fe75faf4d6d8487db30e17c11dd. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800494.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XX (Andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb58a26f9cdeee2d17d803acaf5eb3a3edba48e011d7cb441e8f8b889b39b5f2. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/NLA506800495.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXVI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a92d3ee6ed6228a2c4105b1fb04d7f84eda0c0820727c951c491234fd4bf4c0. 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/NLA506800501.
33 Piano Variations In C, Op. 120 On A Waltz By Anton Diabelli: Variation XXIX (Adagio ma non troppo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d2921e0a461a31335026e355c86c8dc2d0f6256677256cb3f7ad4773417ba3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800504.
Andante And Five Variations For Piano Duet In G, K.501: Thema (Andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72425756512d43a4c2fb7dcad43a493ddd67aae1dfc8e054c93f1afd328cddd. 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/NLA507706208.
Andante And Five Variations For Piano Duet In G, K.501: Variation 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d352edc9aedba7b0d4191a3c7696a3ecf997aca1cac20fe55eee2d0e7efd00c. 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/NLA507706209.
Andante And Five Variations For Piano Duet In G, K.501: Variation 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae77cb44771a6b464c3f971f53406c24d3e9fad930682ef5a211361249c3cba2. 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/NLA507706210.
Andante And Five Variations For Piano Duet In G, K.501: Variation 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6337e186f0078a0c6c9077c9e1f0c716c3aa1408e2886adfa3c81e980545c5. 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/NLA507706211.
Andante And Five Variations For Piano Duet In G, K.501: Variation 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe328b1860c52a187e4032ee0a9d4f2192ee97fc40dc81c91b6a4623f96a3f55c. 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/NLA507706212.
Andante And Five Variations For Piano Duet In G, K.501: Variation 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7356a0765c0af2c28d6e5c02d430d64c762a4c930fd77698203740226ae96ed0. 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/NLA507706213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc230b867fdaa68ba20812d2cbaa59f0c1a4c7957eeef3f3e5a3b9e5b4c05c427. 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/NLA507200242.
11 Bagatelles, Op. 119: 2. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d5778d5488a8f449485981469e17f6ac93682892ef8057c645c089a3601140. 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/NLA507400662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6427c333123fbdb373d3a67dae2ceb6a7c6690b706c0025f8028058d8b3e7d50. 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/NLA507400665.
11 Bagatelles, Op. 119: 6. Andante - Allegretto leggiermente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93372e16e6df498deeb516090aad355680f0ba663c227b056f7dea65098c84ef. 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/NLA507400666.
11 Bagatelles, Op. 119: 8. Moderato cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80903e0d1847a3946af633cdac767b5ea9db4fd64396395f1330b36a473b3073. 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/NLA507400668.
Bagatelles. Beethoven, Chopin, Schubert, Brahms & Debussy
Beethoven: 11 Bagatelles, Op. 119: No. 2 in C Major, Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4810ba96fc842c3832df5681f1dce0de3821bfce31586a5cc03371a247f25cf. 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/GBAYC0103547.
Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 1 in D Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae5595a068a2bdf2deab70e972640ddd42e0545992834ed099c9fc09e5210e5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC9400957.
Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 2 in A Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bb5c6f3bb4419b31fcabf48e1358ff3b830d3136e8680579c8fb6d0f4ecf92. 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/GBAYC9400958.
Schubert: 12 German Dances, Op. Posth. 171, D. 790: No. 3 in D Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f23d46ad65857e4d344d36b0b9f02e1d2b8d892211a26a943eaa89ea950be17. 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/GBAYC9400959.
Chopin: Waltz No. 6 in D-Flat Major, Op. 64 No. 1 "Minute"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc6b539eaaa78cbd65da9607e8cc0a61a4c9aa752237cb7df70d804aaab5365. 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/GBAYC0502149.
Chopin: Waltz No. 9 in A-Flat Major, Op. Posth. 69 No. 1 "Farewell"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e52694ab881ac3a6f8484008abfc7f5bab742d31a149b60c5f2e9355d9d4f6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC0502137.
Brahms: Variations on a Theme by Handel, Op. 24: Variation V. Espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e043553e87e6e0ffc48372a106e47372fd2bd956a155397327992f74860ff2. 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/GBAYC9600531.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ad87020bc2ad95c8242de1f60cda86e14694f320314fa8ee186cc4c992c976. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507919601.
16 Waltzes, Op. 39: No. 3 in G-Sharp Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43b1d5dff7073346bba0d84c74fafed88ede24f8ea96405ab93e6ec228248d8. 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/NLA507919604.
16 Waltzes, Op. 39: No. 15 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b0d5ea4dc1c9e4e7e373daf683641af9a99fdeb1bb1d86e62ec0b3b0bee04d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507919616.
16 Waltzes, Op. 39: No. 16 in C-Sharp Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65faca4750d743a35795426b20dfe960afafc76430b1e16716c7d6ae780dc6b0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA507919617.
6 Piano Pieces, Op. 118: No. 1, Intermezzo in A Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d6a761a8d8aa5b3370a1d0476394cb586c681f0aea493cf1cb9be56b5f55e5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA507919619.
6 Piano Pieces, Op. 118: No. 2, Intermezzo in A Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5301220680fa1e543d7718236c4569836a06fb9d318a0246770190d1a55833. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507919620.
6 Piano Pieces, Op. 118: No. 3, Ballade in G Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4958253acfc285b39a6621acb020009102932bb35b5e8e5629b919f3a5ecec5c. 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/NLA507919621.
6 Piano Pieces, Op. 118: No. 6, Intermezzo in E-Flat Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710b4e799490d5565ea81149ba03d591eae71e1538a1009418bb79f376796d62. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:57:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507919624.
Brahms: Piano Concerto No.1; Handel Variations
Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfb0e9558b59083613e67bd113535412d6ef59776bc3f40d3ea693dbe64a55d. 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/GBAYC9903657.
Bartók, Debussy, Mozart - Music For 2 Pianos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72425756512d43a4c2fb7dcad43a493ddd67aae1dfc8e054c93f1afd328cddd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA507706208.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdcf2a0489895d88361cf44fd120f0e782e4935bc681736a9dbba5ca787a178. 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/GBAYC9701013.
Beethoven: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe05e87c9e04ff9fe1329034ea3b92296747aab202bda81078711ea42a2195f8. 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/GBAYC9201451.
Beethoven: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": I. Largo - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0e7835dccf54e65e51fe3d6f46561b3a027b40dce088af81b1a23a80179f49. 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/GBAYC9400864.
Beethoven: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de585469fddaf1a82a6d2ace36cf46137bd327ea247e5e0ee396910beee5e40. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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. 8 in C Minor, Op. 13 "Pathétique": III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6194fb6a2266b2ace9b87b64b02f417bf0891ec899996b515bea6c891393ba40. 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/GBAYC9701015.
Beethoven: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": III. Rondo. Allegretto moderato - Prestissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a128b2689c014c2ea72adf2f15966c870e5a7aaf0e04e6b669b255f426738. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9201453.
Beethoven: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b424481e1e97b17a00037c1d7fb5cfb20b931018f5de72274e43e7774eedf8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9400866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfb0e9558b59083613e67bd113535412d6ef59776bc3f40d3ea693dbe64a55d. 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/GBAYC9903657.
Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56220e3070d9318caa6bc7f6682faa7ee36abe31afaccbf4a19eb2c8f64ccc41. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:48:12Z), 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/GBAYC9903658.
Beethoven: Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": II. Abwesenheit. Andante espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052a27a70dc42d0ae0f42e00c9431a651b106b34923a6342ecea8abe05e1231f. 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/GBAYC0203671.
Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": III. Presto agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b120f99c31b1aa02aa1d61a334c8807cb99df033eeb54aa096380aa76a7efe6. 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/GBAYC9903659.
Beethoven: Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": III. Das Wiedersehen. Vivacissimamente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd10b8a17e63c128918ab453453557039f701dc637a8b6368afbd2a9937a686. 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/GBAYC0203672.
Beethoven: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bfc1ad12c387ab8309ff807728fadde011238d606820f2054ac97316ea1ae9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC0103541.
Beethoven: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": II. Scherzo. Assai vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd450b83939185c2ae3f57026fcee2f68cbc508db0fe3bc6f8e6cfcf91e3d6dda. 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/GBAYC0103542.
Beethoven: Piano Sonata No. 15 in D Major, Op. 28 "Pastoral": III. Scherzo. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840b31f10b8f2798338711e8d27b7f396438d13983b92e309fc26884d0e81343. 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/GBAYC9802762.
Beethoven: Piano Sonata No. 15 in D Major, Op. 28 "Pastoral": IV. Rondo. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc6705e24fe29de10b5c59f064e3fda7c384df5b24aaa5a82b48dad331cba3b. 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/GBAYC9802763.
Beethoven: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": IV. Introduzione. Largo - Fuga. Allegro risoluto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb145fee4e3ebceba963a0bab0f1ca6ebd31916bff8fe5b49e762273311f6a1. 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/GBAYC0103544.
Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (a) Adagio ma non troppo - Recitativo più adagio -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a5dba72517e307c43a7fc7817e3bb08c45a571d8e4358ca8a95c24aa60b7a5. 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/GBAYC9201464.
Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (b) Adagio ma no troppo. Arioso dolente -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef047916d2c71434cc3a07cb119d6ed2f7245458591db75599f5636443eb0cf. 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/GBAYC9201465.
Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. (e) L'istesso tempo della fuga. Poi a poi di nuovo vivente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bfc477509a06798cf6fc8c7ce8a54c58c1a07e3e50d3347dcf774d251f2914. 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/GBAYC9201468.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217f1ba8b454cb5b92ea6447e88d23113fddd70d433dc5298fe27de7edb7f31d. 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/GBAYC9400952.
Schubert: 6 Moments musicaux, Op. 94, D. 780: No. 3 in F Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddaf3324b01054412c92b56dac96138e409dcbad2d439724e720230b44ba2fe1. 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/GBAYC9400947.
Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto –
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a45b9012359cec3eef93b6c7513be2328789e5fb3250f3b363efea3e0fa54f2. 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/NLA506900797.
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": 1. Grave - Allegro di molto e con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f50145b4f10e0f9c870bf5d3be99d41549dc8afca0f01b1fd49c1dad5569d1. 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/NLA507200179.
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": 2. Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97eb4df3e74258eb5644fcf62aa1ab5aec92ec91b1ca81a076dfa8d135b9fcef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507200180.
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": 3. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ac4d008161a0bd1d857d9fa7574e998b1ce3bb8aabf8478f56a2f36cfd46a1. 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/NLA507200181.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609a6c310d7e3b38f89041af714d98095085c4f61c082ea516b46a8daed9921e. 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/GBAYC0302175.
Beethoven: Piano Sonata No. 1 in F Minor, Op. 2 No. 1: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fb09f02d857e1564d18dd67647e35434b3456fb04303a8ba359530af46de6e. 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/GBAYC0302176.
Beethoven: Piano Sonata No. 1 in F Minor, Op. 2 No. 1: III. Menuetto. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8deb0958d2aec765980210d991e786becfd45b109829b4c105e1a32f36de94e. 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/GBAYC0302177.
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 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/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 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/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 957145 (2026-07-08T08:56:20Z), 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/GBAYC0302181.
Beethoven: Piano Sonata No. 3 in C Major, Op. 2 No. 3: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f7ba39b69c95fc729f5e7ecfc57657d36c63096c3c2eb98dee7012520f3b54. 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/GBAYC0203960.
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 957145 (2026-07-08T08:56:20Z), 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/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 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/GBAYC0203962.
Beethoven: Piano Sonata No. 3 in C Major, Op. 2 No. 3: IV. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc0ae1ef9d6e3f68a3d351eb018e143361af68c613167c9e8f563056aaa6ba7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC0203963.
Beethoven: Piano Sonata No. 4 in E-Flat Major, Op. 7: I. Allegro molto e con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0a8b2fbd98708e38ddd0eeac90b9c81ab5912962f572c1a26abcda87c1846a. 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/GBAYC9903446.
Beethoven: Piano Sonata No. 4 in E-Flat Major, Op. 7: IV. Rondo. Poco allegretto e grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939c04050ff8b1c5eabc21ade794fdfcc2928c178971fef6c51611e4c76bf27f. 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/GBAYC9903449.
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 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/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 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/GBAYC9802752.
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 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/GBAYC9802755.
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: III. Rondo. Allegro comodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c41b19bddaf641f942634c40455673b601fcfd508e2610bde69864405bd76fa. 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/GBAYC9701019.
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 957145 (2026-07-08T08:56:20Z), 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/GBAYC9701026.
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 957145 (2026-07-08T08:56:20Z), 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/GBAYC9903649.
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 957145 (2026-07-08T08:56:20Z), 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/GBAYC9903652.
Beethoven: Piano Sonatas Nos. 12, 13, 14 "Moonlight", 19 & 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfb0e9558b59083613e67bd113535412d6ef59776bc3f40d3ea693dbe64a55d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56220e3070d9318caa6bc7f6682faa7ee36abe31afaccbf4a19eb2c8f64ccc41. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBAYC9903658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b120f99c31b1aa02aa1d61a334c8807cb99df033eeb54aa096380aa76a7efe6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9903659.
Beethoven: Piano Sonatas Nos. 4, 22, 23 "Appassionata" & 25
Beethoven: Piano Sonata No. 25 in G Major, Op. 79: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5492a2e2ca74a6b222956b3f742420297491aebb0fc0dd428b3ee05f79002d5e. 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/GBAYC9903443.
Beethoven: Piano Sonatas Nos. 5, 6, 7 & 15 "Pastoral"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa885bd13288a60744316310b74275e63d35a471117e775442d4814397d726839. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC9802752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc6705e24fe29de10b5c59f064e3fda7c384df5b24aaa5a82b48dad331cba3b. 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/GBAYC9802763.
String Quintet in G, Op. 77: 1. Allegro con fuoco - Più mosso
Members of the Berlin Philharmonic Octet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b78f157a88c235232e05f3ce374b569f9b15f997157a76556263708528b1e8. 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/NLA506800301.
String Quintet in G, Op. 77: 2. Scherzo (Allegro vivace) - Trio (L'istesso tempo, quasi allegretto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2d17e1488b1115770570c9e1fdbb65dcd4d7a260b7d3409c2bcb11f3d1e566. 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/NLA506800302.
Brahms: Klavierkonzert Nr.2, Op.83 - Klavierstücke, Op.76
Beethoven: Piano Sonatas Nos. 8 "Pathétique", 9, 10 & 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdcf2a0489895d88361cf44fd120f0e782e4935bc681736a9dbba5ca787a178. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6194fb6a2266b2ace9b87b64b02f417bf0891ec899996b515bea6c891393ba40. 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/GBAYC9701015.
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: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2289046a1db308f1a4f6a72825981779df465055f70b079871cfa9c5da66ba59. 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/GBAYC9701022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e381f634a3c4f0043d5235ea675fbd4403a9b0e3257276ef372b823a8086f0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701026.
Beethoven: Piano Sonata No. 30, Op. 109 & Bagatelles, Op. 126
Beethoven: 6 Bagatelles, Op. 126: No. 5 in G Major, Quasi allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3d72c724b96ce4f1877457ab715c67fa6937c81ed0c348f6f8dac819c980a6. 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/GBAYC0103569.
Beethoven: Piano Sonatas Nos. 16, 17 & 18, Op. 31
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b424481e1e97b17a00037c1d7fb5cfb20b931018f5de72274e43e7774eedf8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC9400866.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecc5342cf04a669d48df9b91d41e4b47afaea6a9450d9deb061c5cb9fef5e99. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA507000651.
Schubert: Piano Sonata No. 21 in B-Flat, D. 960
Brahms: Klavierstücke, Op. 119; Fantasien, Op. 116; 3 Intermezzi, Op. 117
Brahms: 4 Ballades; Scherzo, Op. 4; 8 Piano Pieces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff444e82db14c935332b8e9aa66857dc8252cb141e9b28867e86721dd126df09. 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/NLA508301801.
Piano Concerto No. 23 in A Major, K. 488: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42d03a4e5eca31c4d51c1efe570a5762d6e4a7c1e8f5a7c0930d226334ffeee. 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/NLA507719705.
Piano Concerto No. 21 in C, K.467: 1. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca2fe46a399c3d0f796813418ccc49709ce828380ab3dbdf0bd4fd651a335bb. 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/NLA507200341.
Piano Concerto No. 21 in C, K.467: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9788f6b93f23cccbdf947cd7086c0fe7402c33e119a8c233430b65e8549fa42d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLA507200342.
Piano Concerto No. 25 in C, K.503: 3. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09aec529d4c6a1786a824c3394608c2b19aa64ec81256040a6b058e1ab7d8e66. 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/NLA507200346.
Piano Concerto in A Minor, Op. 16: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248e837e82502d4e2fc0c9d74de31ca20f26573da5baff289e9d6a744833e2a8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA507100827.
Stravinsky: Concerto for Piano and Wind Instruments; Bartók Piano Concerto No. 2
Mozart: Piano Concerto No. 21 in C, K.467: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9788f6b93f23cccbdf947cd7086c0fe7402c33e119a8c233430b65e8549fa42d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507200342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddaf3324b01054412c92b56dac96138e409dcbad2d439724e720230b44ba2fe1. 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/GBAYC9400947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de585469fddaf1a82a6d2ace36cf46137bd327ea247e5e0ee396910beee5e40. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701014.
Klaviermusik 50 Meisterwerke – Klassik die man hören muss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3d72c724b96ce4f1877457ab715c67fa6937c81ed0c348f6f8dac819c980a6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103569.
Piano Sonata No. 8 in C Minor, Op. 13 'Pathétique': II. Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de585469fddaf1a82a6d2ace36cf46137bd327ea247e5e0ee396910beee5e40. 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/GBAYC9701014.