The Shostakovich Quartet was a string quartet formed in September 1966 at the Moscow Conservatory, and which continued to perform for some 47 years (with varied line-up, but with the original 'cellist
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 0x315868215afaafaca8c70209044785ce4156c4b6ed2ed85ff114d5b9839e4069. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5060197d-1ac7-4b6b-b80e-3258a8aef463.json and https://artists.proofprofile.net/proofs/artist/5060197d-1ac7-4b6b-b80e-3258a8aef463.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
String Quartet No. 8 in C Minor, Op. 110
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 0x2900902a84f9facf97f2ca4757f383d4b5f0a63589fa8bb5d3c1b1589b2d45b3. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USX761560637 — a six-check JSON result.
100 Most Relaxing Classical Music In The Universe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dddaec613a96e0ad0a9124ddf605e447feba666ab93bcf72ed9d18465f797fc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813855 — a six-check JSON result.
USSR Ministry Of Culture Symphony Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09c23bc0ed6fc90cc45d91310b9c7f7b3be2134937664de45e8c7aaa17b0476. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813867 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71d14c02937b057955447a556bbca5f922d91e3262059228aed4961b51ed879. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our 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/USSJ10813884 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca81732f5c71c10dfe9d61d333967ff300aa2b737b10e9e6bb1d4d7645b9d64. 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/USSJ10813893 — a six-check JSON result.
The Merry Widow: "Lippen schweigen" (Orchestral)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f60a38d8480d834d6a350f71f8e81d39e8c1dd71befd96998bd0585e9349615. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813903 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1a09877249f42012bbd7cfb35400dba0b0ee1e41ae65710b19e92101781df0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813856 — a six-check JSON result.
The Four Seasons, Concerto No. 4 In F Minor (L'inverno / Winter) RV. 297 (Op. 8, No. 4): II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6729216978f181c9940892e25de403d4035e506b596ea15a992dd09556a68d8b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813868 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506df3a939180dad061ca6916223cfed86ee2302e66b601f98451867c0baca14. 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/USSJ10813885 — a six-check JSON result.
Violin Concerto in D, Op. 77 - II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cad57e15c4878f62ed36435c77b935fce5c32702e10b0f06ce69dc78ee16d1. 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/USSJ10813894 — a six-check JSON result.
Piano Concerto In A Minor, Op. 16: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb438d183874e64b1d241972adc1ae14f134aa54f182d713c91f5b5ea929c4a96. 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/USSJ10813904 — a six-check JSON result.
Serenade No. 13 in G, 'Eine Kleine Nachtmusik' K. 525: II. Romanze (Andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df1d4c7d02ac9f6e928d050b830c7737905bab43d08f8c8612f9fabaee38cfa. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813857 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2122c2f3d7297c1f3145c8f2244584ca3e1540f792494716fa8207306ff8c320. 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/USSJ10813869 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ed3a8cb663a561e8ec0bda20722911184421b2d72fe20b2cd7b24fc4f27c08. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813886 — a six-check JSON result.
Prelude To The Afternoon Of A Faun (Prelude A I'apres-Midi D'un Faune)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fc981fe4aef893d1f68b112533f1563d160262e65ceebd56ce89cbe3fcd06f. 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/USSJ10813895 — a six-check JSON result.
Piano Sonata No. 14 In C-Sharp Minor Op 27, No. 2 "Moonlight": I. Adagio Sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835ffb5ecff79e2c341f80b4f5fde162a05e1bb48fbf0fe4eb3bf26f941b38b2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813858 — a six-check JSON result.
Songs Without Words, Op. 62: No. 6 in A Major: Molto allegro vivace "Fruhlinglied" (Spring Melody)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933ce3ead24bc63710e75f74dcaf1c40944dfaf3074d97328961f6fd60c9a310. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813870 — a six-check JSON result.
Preludes, Op. 28 No. 15 In D-Flat Major "Raindrop" - Sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60ec795d71cbf8cb637de30b9efcfb690ce3a31dc9614c5147b5a3eec0c9ad0. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813887 — a six-check JSON result.
Variations On An Original Theme, 'Enigma', Op. 36: VIII. W.N. (Allegretto) - IX. Nimrod (Adagio)
Koninklijk Filharmonisch Orkest van Vlaanderen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedba5150a4b8d028be7e77c1f23d30ecca1dc7c97e3dbfa41ee6fa42b37aec85. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813896 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1d632f8b04d96bce4c2108a0adc6f3372417483a1286c8579c5d42c43927bf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813859 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2097a2ae0762d15f02fb476a9dbbc3d836747debd5898dac433fa1ced69a540. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), registered by our 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/USSJ10813871 — a six-check JSON result.
Piano Concerto No. 21 In C K. 467: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d456ca9b82a79a687ffeafddaf38306f5f0ae38284ae4fe3d4bdd66ac26187. 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/USSJ10813888 — a six-check JSON result.
Sleepers, Wake! (Wachet Auf, Ruft Uns Die Stimme )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afffaca8ddf498c8f842306215c47d705e192b12e884487618cf09bab5a4a36. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813897 — a six-check JSON result.
Water Music Suite No. 1 In F Major, HV 348: V. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6955d026a3e720bca69aaed20f6d14fa66a669582dc2bf3ad88aca68f0e93cb4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USSJ10813860 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92df1bba7f68e9a93aacaa6f3bf2a168030f80cdcd6f6fdc651773a9485da36. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813872 — a six-check JSON result.
Well Tempered Klavier, Book I, No. 22 BWV 867
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec612d4280bb309b472c8c1d2a00f07284b538b02c8684f958f3d520d64a2a3. 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/USSJ10813889 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9333fca94ac6b8c95c17521c9073b74c072c632dec24db93c8354dae43b98d6. 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/USSJ10813898 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc51656868d101eef6ca0fb7e99b578dd20547241829889deca7615ea02e3f29. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813861 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8b1ad2e8ed5f057b2862bffe7746a01bdb36a0ce4ef9e3b452f0b4785d22ba. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USSJ10813873 — a six-check JSON result.
The Four Seasons: Concerto No. 1 In E Major, Op. 8, RV 269, "Spring": I. Allegro (Danza Pastorale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05990a42c11f99ae84b916fd120290d4201774d03df41fbde9499735d553573. 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/USSJ10813890 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3554c391c09eff198e10e4cf34116d1e4c421808fff2a867bcc86e9b26d6fb. 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/USSJ10813899 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b14ff080ae9fa1dc8c9705038a1531f4a9ee133a78f7df2e0380f19fd6d25f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813862 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20fbd91f2c9309b6b063c694e4606f7d7884af98d2d45b7dc95edd6b742a2ff. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our 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/USSJ10813874 — a six-check JSON result.
Symphony No. 5 In C Minor, Op. 67 "Fate": II. Andante Con Moto
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Piano Concerto No. 20 In D Minor K. 466: II. Romanze (Excerpt)
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Cantata No. 147: Jesu, Joy Of Man's Desiring
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65032402a496d550f84e96e6f6e2bcc8398fcf03c5ccf822b064dd507fd73aa9. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), registered by our 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/USSJ10813875 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22352c7495fdd455f8e6d7b224ce3fa17244eb2d197f182faed449f01a65ee2b. 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/USSJ10813892 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf17cad38287617a119f0570474d9c44831d4f2402f7cc99d75a5bec237a77f. 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/USSJ10813901 — a six-check JSON result.
Liebestraum No. 3 In A-Flat Major, Op. 62
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f36f6e943d0874aceaf2a0b6f9902b8f6bacf7e80023429f726c005eb1f5b4. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813864 — a six-check JSON result.
Flute And Harp Concerto In C K. 299 / 297C: II. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c7661778a6ac078dd4eab972c9bfd4fcbfcf81b885dd1196293212e91cfcb2. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813876 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cd4ec146b789164f07cdf788fcae9ff6d95488e673b1702c523d5c43694ebd. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10813902 — a six-check JSON result.
Piano Concerto No. 1 in B-Flat Minor, Op. 23: II. Andantino semplice - Prestissimo - Tempo I
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Piano Concerto No. 2 In F Minor Op 21: II. Larghetto
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Serenade For Strings In E Major, Op. 22: I. Moderato
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Clarinet Concerto In A K. 622: II. Adagio
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Violin Concerto In D Major, Op. 35: II. Canzonetta, Andante
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Concerto in D Major for Guitar and Strings, RV 93: II. Largo
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Spiegel im Spiegel for Violin and Piano (1978)
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Suite No. 1 in G Major for Solo Cello, BWV 1007: I. Prelude
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Orpheus and Eurydice: Dance of the Blessed Spirits
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The Most Relaxing Classical Music In The Universe
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Karen Englund & Societas Musica Chamber Orchestra
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The Four Seasons - Violin Concerto In F Minor, RV 297, "Winter": II. Largo
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Concerto No. 21 in C Major for Piano and Orchestra, K. 467 - "Elvira Madigan": II. Andante
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La Musica Clasica Mas Relajante En El Universo
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Swan Lake, Op. 20a: No. 3, Dance of the Swans
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Swan Lake Suite, Op. 20a: III. Dance of the Swans
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The Seasons, Op. 37a: VI. June, Barcarolle
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Children's Album, Op. 39: No. 1, Morning Prayer
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Children's Album, Op. 39: No. 2, Winter Morning
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Symphony No. 1 in G Minor, Op. 13 "Winter Daydreams": II. Land of Desolation, Land of Mists: Adagio cantabile, ma non tanto
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String Quartet No. 1 in D Major, Op. 11: II. Andante cantabile
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: II. Andantino semplice - Prestissimo
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Serenade for Strings in C Major, Op. 48: III. Élégie: Larghetto elegiaco
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Souvenir de Hapsal, Op. 2: III. Chant sans Paroles in F Major
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Elegy for String Orchestra in G Major, TH 51
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Chamber Chill - The Most Relaxing Chamber Music
Quintet for Flute, String Trio and Harp (1934): I. Andante tranquillo
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String Quartet No. 2 in D Major: III. Notturno: Andante
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Piano Quintet No. 2 in A Major, Op. 81: II. Dumka: Andante con moto
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Wind Sextett in E-Flat Major, Op. 10: II. Andante
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String Quartet No. 53 in D Major, Hob. III:63, Op. 64:5, "The Lark": II. Adagio cantabile
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Partita in F Major for Wind Quintet: IV. Adagio
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Sonata in G Minor for Cello and Piano, Op. 19: III. Andante
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Quintet in E-Flat Major for Piano, Oboe, Clarinet, Horn and Bassoon, Op. 16: II. Andante cantabile
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Piano Quartet in G Major, Op. Posth 4, WoO 6: I. Andante cantabile
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Trio No. 16 in D Major for Flute, Cello and Piano, Hob. XV:16: II. Andantino piu tosto - Allegretto
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String Quartet No. 15 in D Minor, K. 421 (Haydn Quartet No. 2): II. Andante
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Trio No. 1 in B-Flat Major for Violin, Cello and Piano, D. 898: II. Andante un poco mosso
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Quintet for Piano, Violin, Viola, Cello and Bass in E-Flat Minor, Op. 87: III. Largo
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String Quartet No. 14 in G Major, K. 387 (Haydn Quartet No. 1, "Spring"): III. Andante cantabile
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Sonata No. 6 in A Major for Violin and Piano, Op. 30: II. Adagio
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String Quartet in G Minor, Op. 10, L 85: III. Andantino - doucement expressif
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The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": II. Largo
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Suite Bergamasque, L. 75: III. Clair de lune
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Nocturnes, Op. 15: No. 2, Larghetto in F-Sharp Major
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Violin Concerto in G Minor, BWV 1056R: II. Arioso, Largo
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Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arrival in the Countryside (Allegro ma non troppo)
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Violin Concerto in D Major, Op. 35: II. Canzonetta. Andante
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Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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Liebesträume, S. 541: No. 3, Oh lieb, so lang du lieben kannst
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Cello Suite No. 1 in G Major, BWV 1007: II. Allemande
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Clarinet Quintet in A Major, K. 581: I. Allegro
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Romance No. 1 in G Major for Violin and Orchestra, Op. 40
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Jeux d'enfants, Op. 22: XI, Petit mari, Petite femme!
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Deux arabesques, L. 66: No. 1, Andantino con moto in E Major
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Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
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Orpheus and Eurydice, Wq. 41, Act II: Dance of the Blessed Spirits
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Academic Festival Overture in C Minor, Op. 80
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Violin Concerto in E Minor, Op. 64: I. Allegro molto appassionato
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Divertimento in B-Flat Major for Strings, K. 137 "Salzburg Symphony No. 2": I. Andante
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Flute Concerto in D Major, RV 428 "Il gardellino": II. Cantabile
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Orchestral Suite No. 3 in D Major, BWV 1068: Air
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Concerto No. 21 in C Major for Piano and Orchestra, K. 467: Andante
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Nocturne No. 20 in C-Sharp Minor, Op. Posth.: Lento con gran espressione
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Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 4 in F Minor, RV 297, "L'inverno" (Winter): II. Largo
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Symphony No. 5 in C Minor, Op. 67, "Fate": II. Andante con moto
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Cavalleria Rusticana: Symphonic Intermezzo
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Sonata No. 5 in F Major for Violin and Piano, Op. 24, "Spring": II. Adagio molto espressivo
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Prélude à l'après-midi d'un faune (Prelude to a faun's afternoon), L 86
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Peer Gynt Suite No. 1, Op. 46: Morning Mood
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Pavane pour une infante défunte (Pavane for a Dead Princess), M. 19
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The Planets, Op. 32: II. Venus, the Bringer of Peace
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Le carnaval des animaux (The Carnival of the Animals): Le cygne (The Swan)
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Andante in C Major for Flute and Orchestra, K. 315
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Kinderszenen (Childhood Scenes), Op. 15: VII. Träumerei (Dreaming)
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Adagio in E Major for Violin and Orchestra, K. 261
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Concerto No. 1 in D Minor for Piano and Orchestra, Op. 15: II. Adagio
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Music to Rosamunde, D. 797: Intermezzo No. 2: Andantino
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Sonata No. 8 in C Minor for Piano, Op. 13, "Pathétique": Adagio cantabile
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Concerto in D Major for Flute and Strings, RV 428, "Il gardellino": II. Cantabile
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Bagatelle in A Minor, WoO 59, "Für Elise"
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Messiah, HWV 56: Pifa (Pastoral Symphony)
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The Nutcracker, Op. 71a: XI. The Magic Castle on Candy Mountain (attacca)
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Symphony No. 8 in B Minor, D. 759, "The Unfinished": II. Andante con moto
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Concerto in G Minor for Violin and Strings, BWV 1056R: II. Arioso: Largo
Symphony No. 3 in F Major, Op. 90: III. Poco allegretto
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Concerto No. 1 in E Minor for Piano and Orchestra, Op. 11: II. Romance: Larghetto
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Concerto No. 4 in F Major for Organ and Orchestra, HWV 292, Op. 4: III. Adagio
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Motet in D Major for Choir and Orchestra, K. 618: Ave verum corpus
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Carnaval, Op. 9, "Scenes mignonnes sur quatre notes": XII. Chopin
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Peer Gynt Suite No. 2, Op. 55: Solveigs Song
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Concerto No. 5 in E-Flat Major for Piano and Orchestra, Op. 73, "Emperor": II. Adagio un poco mosso (attacca)
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Swan Lake, Ballet Suite, Op. 20: IV. Pas d'Action
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Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 1 in E Major, RV 269, "La primavera" (Spring): I. Allegro
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Ellen's Chants, D. 839, Op. 56: III. Ave Maria
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Variations on a Theme by Joseph Haydn, Op. 56a: I. Theme in B-Flat Major
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Carnaval, Op. 9, "Scenes mignonnes sur quatre notes": VIII. Replique
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Etude No. 3 in E Major, Op. 10, "Tristesse": Lento ma non troppo
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Serenade No. 13 in G Major, K. 525, "Eine Kleine Nachtmusik": II. Romance: Andante
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Préludes for Piano, L 117: La fille aux cheveux de lin (The Girl with the Flaxen Hair)
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Glazunov: String Quartets Nos. 3 & 5, Music from "The Fridays"
Tchaikovsky: Complete Music for String Quartet
Tchaikovsky: String Quartets Nos. 1 & 2; Five Early Pieces
Belyaevsky Group-Collective Works by Russian Composers Played by The Shostakovich Quartet
Tchaikovsky: String Quartet No. 3 - Grechaninov: String Quartet, Op. 2
Tchaikovsky: String Quartet No. 1, 2 & Five Early Pieces
Shostakovich: Complete String Quartets, Vol. 5
Shostakovich: Complete String Quartets, Vol. 4
Shostakovich: Complete String Quartets, Vol. 3
String Quartet No. 8 in C Minor, Op. 110: I. Largo
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String Quartet No. 8 in C Minor, Op. 110: II. Allegro molto
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String Quartet No. 8 in C Minor, Op. 110: V. Largo
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Shostakovich: Complete String Quartets, Vol. 2
Shostakovich: Complete String Quartets, Vol. 1
Glazunov: String Quartet No. 6, Op. 106 & No. 7, Op.107
Glazunov: String Quartet No. 3, No. 5 & Other Works
String Quartet No. 3 in G Major, Op. 26 "Slavonic": I. Moderato
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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String Quintet in E Major, G. 282: III. Minuetto - Trio
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
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The Ultimate Most Relaxing Tchaikovsky In the Universe
Swan Lake Suite, Op. 20a: No. 1, Scène (Lake in the Moonlight): Moderato
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