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 0xdbe66d17d19b2e4bcc3d5f4bbc8c06eff0db4593eb58b73c17903d3116b5b2e1. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d7c173c-a72d-4e55-88da-c17a5d049351.json and https://artists.proofprofile.net/proofs/artist/9d7c173c-a72d-4e55-88da-c17a5d049351.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Voyages. Piano Music from the Golden Age
Vestiges. Piano Music from the Golden Age
Women of Piano. Great Female Pianists of the Golden Age, Vol. 4
Piano Pieces, Op. 118: No. 4, Intermezzo - Triphonola 52739
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 0x4b3c7566ecef987e899f9c3fbff44822eeb0ca7158fe8f4b1619b63ecddac590. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82323250 — a six-check JSON result.
Piano Pieces, Op. 119: No. 3, Intermezzo - Duo-Art 6911
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ed6ba8a4f9d635cf5e04380b1cca95641ff7129f20808a7c03d42b522577a9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82323251 — a six-check JSON result.
Oubliée. Heritage Piano of Liszt, Chopin & Rachmaninoff
Waltz, Op. 70, No. 1 in G-Flat Major (Posthumous) - Welte-Mignon 1465
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cf39067aec26ef27d78a2251da0b92c29584407e565b62c9ac89c773ad5153. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82402284 — a six-check JSON result.
Romances, Op. 21: No. 12, 'How Painful for Me' (Arr. For Solo Piano by A.Schaefer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49451881b099998c32ac89bba1e1aa120d043cf94d0822179cb7dcc9de69c79. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82401194 — a six-check JSON result.
Preludes, Op. 23: No. 5 in G Minor - Triphonola 51661
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409d3f4f80f9eaa37a332d59af4cae16a67ce329294b3810f2f7be4ef9f6b1a5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82319983 — a six-check JSON result.
Schmetterling. Piano Music by Chopin, Schumann and Legacy
Preludes, Op. 28: No. 3 in G Major - Welte-Mignon 3184
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567e84d2a6c4852e82c443d91aced819d72f904401689e345ca6f79d8b9ba3c9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82307341 — a six-check JSON result.
Ecossaises, Op. 72: Three Ecossaises, Nos. 3, 4 & 5 - Duo-Art 5741
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fedec31e94c3b0e1628c9fbd5116522344d7f36a24259d512e6f2eabf38eba. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82310316 — a six-check JSON result.
Lyrische Stucke, Op. 43: No. 4, Voeglein Birdling (Little Bird) - Welte-Mignon 1277
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b21ad19a0f9045300ceb071353c1f4d67e6a339e6b0e880f1fe0c09d0fb189. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82321819 — a six-check JSON result.
Humoresques, Op. 101: No. 7, Poco Lento E Grazioso (G♭ Major) - Welte-Mignon 1324
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9096f333927684020789f1869b89a8ebb9a83879a2a3b701af77d93f9f63d51. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82305943 — a six-check JSON result.
Impromptu No. 1, Op. 29, A-Flat Major - Welte-Mignon 455
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f94754439d5c0fc934c49eb4a5740588aecbaf3766451f571f44eb6ff6e7eb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82319203 — a six-check JSON result.
Fantasie Impromptu, Op. 66, C-Sharp Minor - Duo-Art 6058
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f692202a352625e197f428e2525ab567ac49a3b7e0f31814213a74935cecf7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82307339 — a six-check JSON result.
Der Erlkonig S. 558 - Upon Piano Roll Welte-Mignon 1260, Issued 1906
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d3c2f5df043fb569481a0f8b7f8613b69c36302482ffa0dc522195aa080e60. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82435230 — a six-check JSON result.
Fantasie, Op. 17 in C Major: I. Durchaus Phantastisch Und Leidenschaftlich Vorzutragen - Upon Piano Roll Welte-Mignon 361, Issued 1905
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3896b50935167d2da56dc213d5995ed87cfdcfcc5b9691619a003a61965ebf5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82435229 — a six-check JSON result.
Women of Piano. Great Female Pianists of the Golden Age
Women of Piano. Great Female Artists of the Golden Age
Little Waltz (Mi Teresita) - Welte-Mignon 371
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf356015dffc1591f18194ad8d46d53e088005fe0f9883c8ee0bcc5e7ebabda5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82309583 — a six-check JSON result.
Idyll. Heritage Piano Music of Beethoven & Schumann
Bagatelles, Op. 119: No. 11, Andante Ma Non Troppo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2e0e1632094d1a97f2a6a40d7483662ba4f459aeafc17fd7f4cd09e26e9387. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82402236 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaabdc30d3350a4feef2afd2c6d0ea74bd3337a8665f10e1907e9c606a80e5e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82406033 — a six-check JSON result.
Flute Sonata in E Minor, BWV 1034: III. Andante (Arr. For Piano by Irene Cantos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120e17a89261c52ab156b141ba71012508f52a49e32191263cf1c2e185dac8d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82308039 — a six-check JSON result.
Capriccio in B-Flat Major, BWV 992: III. Adagissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c09d6a4a2a5efe5b72b49497955ca1480bb59d7df596b215e3d2cf0b7fe38b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82326725 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b5484c3ad0697c48d171cea2c0028481bd1fbe20c97e0fadcf9b004f316e96. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82321785 — a six-check JSON result.
Chaconne in D Minor from Violin Partita BWV 1004 (Arr. By Busoni): Part II - Upon Piano Roll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616b38ade73ae1a46360a438caa2be4c340534de270f8ee968f5334ee9c6cac8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82312783 — a six-check JSON result.
Suite for Harpsichord, No. 14: Gavotte Varie - Welte-Mignon 540
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b7c9ac935837e5cd066c6fcd1310dac642ffebdd422058af20d6878ad2e205. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82320111 — a six-check JSON result.
Fleurettes. Piano Essentials from the Golden Age
Moments Musicaux, Op. 94: No. 3, in F Minor - Welte-Mignon 1211
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa317ca9f4ae3e2c771efee20e4bf0ca7f866ba838ff3ea3fd6e6b160355c7e78. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82322269 — a six-check JSON result.
Brazilian Dances, Op. 13: No. 4, Galhofeira - Duo-Art 66560
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797eee21708ca24994b08f0ecaaf450e7743456bebc160cfdfaa696dc98866f5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82322262 — a six-check JSON result.
En Boheme, Op. 82: Bluette - Duo-Art 6178
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a6bf905555073933ad224c382462bc0aeaaa1ac4286ff36c1c399e8e1ba482. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82409692 — a six-check JSON result.
Coppelia. Brilliant Piano from the Golden Age
Fantasie Impromptu, Op. 66, C-Sharp Minor - Due-Art 6058
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f692202a352625e197f428e2525ab567ac49a3b7e0f31814213a74935cecf7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82307339 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27e113e0707d20532805104071f6550c7089762c57da8db7f7363c1d3f2fe1a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82319218 — a six-check JSON result.
Spianato. Piano Music of Chopin, Schubert & Rachmaninoff
Andante Spianato and Polonaise Brillante, Op. 22 - Upon Piano Roll Duo-Art 6365, Issued 1920
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b2541982e0bc5736fb7746675048f3fb52da6e4b88f44396d3832c67a2d479. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82409012 — a six-check JSON result.
Polish Songs, Op. 74: No. 1, Maiden's Wish (Arr. By Liszt) - Duo-Art 6478
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d70f7b0933820ca388f0cd301fd440f9a9d09d14e6dbe364054a7c8324250b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82323720 — a six-check JSON result.
La Fontaine. Liszt and Bach from the Golden Age
Am Stillen Herd. Opera Transcriptions from the Golden Age
Etude, Op. 25, No.9 (Butterfly) G-Flat Major - Duo-Art 5649
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084d666d9b96cf5f0f821b883e75d43cc443a0f3a6bc0477c4eb650641b1f007. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82437911 — a six-check JSON result.
Romanze. Heritage Chopin, Grieg & Tchaikovsky
The Seasons, Op. 37a: No. 6, Barcarolle (June) - Duo-Art 7128
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e3b3d7cf60e3a783c932f712abcae54a55011efee22c1c77f737f9516e1d9c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82308084 — a six-check JSON result.
Moonlight. Piano Evocations from the Golden Age
Organ Concerto in D Minor, BWV 596 (Arr. Solo Piano by Zadora): Part I - Duo-Art 66970
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2fef815177de251c6bee05cf47b570f77027670f56535854b427664797fffe. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82451740 — a six-check JSON result.
Organ Concerto in D Minor, BWV 596 (Arr. Solo Piano by Zadora): Part II - Duo-Art 67190
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cf0480f25a1556d8e99d60dc603d1c2f0e1c01e40bb25c29adbfd199f72552. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82454115 — a six-check JSON result.
Kaleidoscope. Op. 40, No.4 - Duo-Art 6845
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510ffa0513b898d9157adeb782cf7f102cac6c823d94f554fbed21bc8c7a3d39. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82454122 — a six-check JSON result.
Three Morceaux. Op. 48: No. 3, Etude Heroique - Duo-Art 5848
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde01e08012770ad72747354d7788afb414d2a62a8f82db87d7754c44fa5e34aa. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82454123 — a six-check JSON result.
Preludes, Book II: No. 6 General Lavine (Eccentric) - Duo-Art 0345 Br
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6e291985e0c36e88160a01482a255ecc042a9f0bb37264382178ec37abb2bf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82451739 — a six-check JSON result.
Aus Dem Volksleben, Op. 19: No. 2, Norwegian Bridal Procession - Welte-Mignon 1276
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c4fe955f9a944df7f40e06f301e9fdf1a46255a07d15876078bb0154f1a803. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82454112 — a six-check JSON result.
Etude, Op. 25, No. 11 in A Minor - Duo-Art 6606
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc3ee39b1c6ca53911d7ba0a7b0f7c2fb7af4cb183f6921692878fd104f9473. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82454111 — a six-check JSON result.
Hungarian Dance No. 1 in G Minor, Allegro Molto - Welte-Mignon 1085
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445e5eaf571687d0911c89ac5cfc4baa2edcc608a82fa358829941a1902d4deb. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82454113 — a six-check JSON result.
Piano Sonata No. 11 in A Major, K.331: I. Theme, Andante Grazioso
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Piano Sonata No. 11 in A Major, K.331: III. Alla Turca
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Piano Sonata No. 14, Op. 27, No.2 "Moonlight": I. Adagio Sostenuto - Duo-Art 6929
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Piano Sonata No. 14, Op. 27, No.2 "Moonlight": II. Allegretto
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Piano Sonata, Op. 27 No. 2, Moonlight: III. Presto Agitato - Duo-Art 6930
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Butterflies. Chopin, Liszt & Contemporaries. Piano Essentials from the Golden Age
Etudes, Op. 25: No. 1 in A-Flat Major, 'Aeolian Harp' - Duo-Art S-3032
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Aquarelles. Piano Music from the Golden Age
Barcarolle, Op. 60, in F-Sharp Major - Duo-Art 654
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Liebestraume No. 3 ('O Love') - Duo-Art 7369
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20th Century Masterworks - Techno-Parade