thumb|200px|Alexander Dargomyzhsky(Portrait by Konstantin Makovsky, 1869) Alexander Sergeyevich Dargomyzhsky () was a 19th-century Russian composer. He bridged the gap in Russian opera composition be
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 0x2d0f3d06f83b844ba53a1d41ece01254d1f38d71c711f0b296e8d6c8f41063d4. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4023922-b141-4fd6-8a37-f3e331af9025.json and https://artists.proofprofile.net/proofs/artist/f4023922-b141-4fd6-8a37-f3e331af9025.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xd3ba946607aeba13f9542b4102f13b9e5bb13806c5de7b8691f166b366f40634. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1247663 — a six-check JSON result.
Russian Images, Vol. 1: Songs for Bass & Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2785d20218414779f89b15126ef4528c430f48ed1657c5949d5f5999e88cda. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960530502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c5fbc67da6b2499f822ad3aa80b5aa27a40d637336211466c37a4083af1594. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEN960530503 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867804207ce2be88b115f750c3a26f9d7308934ff7b8b1475a7f9f6180605759. 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/DEN960530504 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea3881e7fcd30e6926606c383ba4b8bc299b9cc164c8a80d6ce781dc7464c38. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960530505 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68a53a7cd532c1cfde50702df76cb91aa2dd6dbb89200d7e85a57b860716c26. 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/DEN960530506 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b57d3cb3cf829acd0c051231f1b63b1031aef7051aa5914fb8cdb1e500da90b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960530507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ede4ab144f2189e025a64725ff820126ee230b4011f90ddbc666b9d1cf219e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960530508 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf981928236ade7c16ef97743bf216b02df49b4f770cdc9e6b65b7fb43ffb9ad2. 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/DEN960530509 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7751b96b1c1e840b39fcd1932a711fb525913c8ff0830bbab0d6a63ae0f642d7. 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/DEN960530510 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35708336151ac7b11aad34d10c66b1603dec318dd4fcf95ec9d1f05f4ca8d90. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEN960530511 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3378d1b8378d2846c7f7a916a646552213e45aa0a7e82754e8cb94470f285d7e. 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/DEN960530512 — a six-check JSON result.
6 Soirées de Saint-Pétersbourg, Op. 44: No. 1a Romance in E-Flat Major Arr. Anton Grigorievich Rubinstein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119f4397748b19bef09c125e4e0e320ecdcde3776da94e6813d6a2d4e2ae7b87. 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/DEN960530513 — a six-check JSON result.
The Clouds Begin to Scatter, Op. 42, No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eec7617e9f345bf3e23a1ab8d5d400e81b1b425174c2fffc647225ec3c68e20. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEN960530514 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9592147a69d521f3f47bf248d8944a81456d7053d88a57f9bf2985696ad156. 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/DEN960530515 — a six-check JSON result.
Captivated by the Rose (The Nightingale), Op. 2, No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5811ad8adc1bb69b80c32b2784af8711f07bcca722992f2b4baf9266dc1d4a8b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960530516 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87ca81b9344eac6c8bf3d2543ff44e0751de642aa0f37afc346c8dd8361da78. 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/DEN960530517 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6729ee2fda582457f6c63a185cb3ba6ecdb3faf890cd90b5c75430497e5c335c. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960530518 — a six-check JSON result.
6 Melodies, Op. 60: Zhelanie , Op. 60, No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452a31819a731bb73bd3bcfcd70dce012aa5307c18fbc1368a3c8ef823f677f4. 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/DEN960530519 — a six-check JSON result.
Ne poy, krasavitsa, pri mne, Op. 4, No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2e481ac54855588a0344bdcd147bd5b57fef72633af717160fa09e0e656d60. 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/DEN960530520 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bc9985db25dfbec5a94336dc4ba2506998078f2464ae16b3585d898e5ee2ce. 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/DEN960530521 — a six-check JSON result.
Vocalise, Op. 34, No. 14 - Version Cello And Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a695036394d354faf15087e1bb6ac6d557c983f83bff5328631e0d1565b6c7. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), registered by our 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/DEN960530522 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e54424e47814d8b4059e290f26948b6a76a44bbe9a23bd390b7376f5426c6c. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEN960530523 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6639f9856541ca2b5d9e9056bd04d8257626c4386569a829bf7dc7e51fc8d07b. 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/DEN960530524 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6a91f116f728154d91a0dc9a4b90984323b802a4ea43a804a4d0d5f2bc4676. 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/DEN960530525 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0bfd375267fe897cc61d075026ff9852c3214e357527c38d26fc349099e2f0. 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/SEAEW1444020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304a7b82f2f295a472c4aa41a15880b7f8de1338854a02bb4498bf95729b6b11. 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/SEAEW1444030 — a six-check JSON result.
6 Romances, Op. 38: No. 3, Amid the Din of the Ball (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba44052c5b496852606f1177257fbc86bb74aa9f0e9fc9aafff8b7ca36274fb5. 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/SEAEW1444040 — a six-check JSON result.
6 Romances, Op. 6: No. 6, None But the Lonely Heart (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb587a568dd9409343235b0bf7cf93ea5e8e4c9009c2bac7868ea904c855ba8c5. 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/SEAEW1444050 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84fe84cfd28e6c155aaac8bd2b155b4bdedea74420e04b9574642bc419c1925. 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/SEAEW1444060 — a six-check JSON result.
Recorder Sonata in F Minor, TWV 41:F1: I. Andante cantabile (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c319a51c88c64ebb926af6c30aa01ca5a29188f91ba0b45ba191d322d7cc652. 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/SEAEW1444070 — a six-check JSON result.
Recorder Sonata in F Minor, TWV 41:F1: II. Allegro (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b56a7cc98c19cd61448b3119c4c836991885fdcdb157dcf9ba2a35b444434b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/SEAEW1444080 — a six-check JSON result.
Recorder Sonata in F Minor, TWV 41:F1: III. Andante (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998e5b5217278c8049a8f87440807a45ea44380536e5d026a1e40b90a364ed84. 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/SEAEW1444090 — a six-check JSON result.
Recorder Sonata in F Minor, TWV 41:F1: IV. Vivace (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca4b736a505a8ae31783c01de4a9fb9af2ad7ab246a6f8c9ec6bbc66cb3ec12. 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/SEAEW1444100 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00280fca2fc9dda302b49d2fcb70b0ed80bbf1703f14150671fb328cc339a8b. 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/SEAEW1444110 — a six-check JSON result.
Adagio & Allegro, Op. 70: Allegro (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6696acfd3f4a84660c16ffbee4fe3cf0aa51d3a4a9ff6506a839e5b9fdabafe4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/SEAEW1444120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd255d5bee27a9f92594bb3a699a50709c9fb7373589c2570b2b70be1cdc2c8. 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/SEAEW1444140 — a six-check JSON result.
Великие исполнители России: Сергей Лемешев (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bd1f17b8b9816436c8a826367dd009b867c4d4ec22598ee8cb3f39cc6ef943. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/UK2Y21310532 — a six-check JSON result.
The Queen of Spades, Op. 68, Act III Scene 7: Herman`s Aria "Chto nasha zhizn? Igra!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec7600253138360df4ca8cacb7ece3680c377d3529039c73a4c200fbd05e1ec. 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/UK2Y21310549 — a six-check JSON result.
The Nutcracker, Op. 71, Act II Scene 3: Dance of Prince Orgeat and the Sugar-Plum Fairy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6399a71ed3c5f131e1d2f3ed350cd9cad9589e91ab32c3d8101fce8d55bae7de. 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/UK2Y21310538 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd635e5284a415d2db4d087262c995fddb0e1d2bbc3a8badf85fdbf4b007029c. 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/UK2Y21310524 — a six-check JSON result.
Romeo and Juliet, Op. 64, Act I Scene 2: Dance of the Knights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78380d187ed5ee39b5fc39295ae5cbdc03ee0ed33ef2adf876768a96d1c1a99a. 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/UK2Y21310553 — a six-check JSON result.
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4 Piano Pieces, Op. 48: Melancholy in G Minor, Op. 48
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Sentimental Waltz in E Minor, Op. 51 No. 6
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Russkaya Melodiya: Romantic Russian Melodies for Oboe and Piano
Prelude, Op. 11, No. 1 (Arr. Larry Sitsky)
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ARSM I, Vol. 4. Dargomyzhsky, Rubinstein, Nápravník
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Dargomyzhsky: Rusalka, Op. 4 (Excerpts) & Other Vocal Works
Dargomyzhsky: Rogdana - Fragments from the unfinished opera
Dargomyzhsky: Night Zephyr (Sung in Russian)
Suite for Solo Cello No. 1 in G Major, BWV 1007: I. Prélude
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Suite for Solo Cello No. 3 in C Major, BWV 1009: I. Prélude
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Ave Maria: Arr. from Bach's Prelude No. 1, BWV 846 (Arr. by Maisky)
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Suite for Solo Cello No. 1 in G Major, BWV 1007: II. Allemande
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Suite for Solo Cello No. 3 in C Major, BWV 1009: II. Allemande
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Violin Sonata in D major, Op. 1, No. 13, HWV 371 - arr. by Mischa Maisky for Cello and Piano: 3. Larghetto
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Suite for Cello Solo No. 1 in G, BWV 1007: III. Courante
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Suite for Solo Cello No. 3 in C Major, BWV 1009: III. Courante
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Suite for Solo Cello No. 1 in G Major, BWV 1007: IV. Sarabande
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Suite for Solo Cello No. 3 in C Major, BWV 1009: IV. Sarabande
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Orfeo ed Euridice, Wq. 30: Dance of the Blessed Spirits "Melody" (Arr. for Cello & Piano)
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Suite for Solo Cello No. 1 in G Major, BWV 1007: V. Menuet I-II
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Suite for Solo Cello No. 3 in C Major, BWV 1009: V. Bourrée I-II
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Suite for Solo Cello No. 1 in G Major, BWV 1007: VI. Gigue
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Suite for Solo Cello No. 3 in C Major, BWV 1009: VI. Gigue
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24 Préludes, Op. 28 - Russian Arrangement for Cello and Piano: 6. in B minor
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Suite for Solo Cello No. 2 in D Minor, BWV 1008: I. Prélude
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Suite for Solo Cello No. 4 in E-Flat Major, BWV 1010: I. Prélude
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Ave Maria, "Ellens Gesang III", Op.52 No.6, D.839 (Arr. Johannes Palaschko)
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Suite for Solo Cello No. 2 in D Minor, BWV 1008: II. Allemande
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Suite for Solo Cello No. 4 in E-Flat Major, BWV 1010: II. Allemande
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Suite for Solo Cello No. 2 in D Minor, BWV 1008: III. Courante
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Suite for Solo Cello No. 4 in E-Flat Major, BWV 1010: III. Courante
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Suite for Solo Cello No. 2 in D Minor, BWV 1008: IV. Sarabande
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Suite for Solo Cello No. 2 in D Minor, BWV 1008: V. Menuet I-II
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Suite for Solo Cello No. 4 in E-Flat Major, BWV 1010: V. Bourrée I-II
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Suite for Solo Cello No. 2 in D Minor, BWV 1008: VI. Gigue
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Les Erinnyes - Arr. by Mischa Maisky: Elégie
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Suite for Solo Cello No. 6 in D Major, BWV 1012: I. Prélude
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Suite for Solo Cello No. 5 in C Minor, BWV 1011: I. Prélude
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Le Carnaval des Animaux, R. 125: Le cygne (Transcr. for Cello and Piano)
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Suite for Solo Cello No. 6 in D Major, BWV 1012: II. Allemande
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Suite for Solo Cello No. 5 in C Minor, BWV 1011: II. Allemande
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Suite for Solo Cello No. 6 in D Major, BWV 1012: III. Courante
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Suite for Solo Cello No. 6 in D Major, BWV 1012: IV. Sarabande
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Suite for Solo Cello No. 5 in C Minor, BWV 1011: IV. Sarabande
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Suite for Solo Cello No. 6 in D Major, BWV 1012: V. Gavotte I-II
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Suite for Solo Cello No. 5 in C Minor, BWV 1011: V. Gavotte I-II
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Suite for Solo Cello No. 6 in D Major, BWV 1012: VI. Gigue
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Hymns to the Motherland: III. Sadness of Open Space
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Obiedov, Y.: Songs and Dances of Latin America / Gubaidulina, S.: Serenade / Pettoletti, P.: Cachucha
Spanish Serenade (arr. for cello and 7-string guitar)
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Songs and Dances of Latin America: I. Lullaby
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Songs and Dances of Latin America: IV. El Perico (Parakeet)
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Songs and Dances of Latin America: V. Brazillian Serenade
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Ispanskie shalosti (The Spanish Frivolities)
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La danse par le disque, vol. 12 : Barre et milieu, Classe de Sadovska
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Barre: Battements tendus , Gavotte en forme de rondo (Extrait)
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Barre: Ronds de jambe à terre, Mazurka en Do dièse mineur
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Barre: Ronds de jambe en l'air, Valse en l'air (Extrait)
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Barre: Grands battements, Marche (Extrait de Roméo & Juliette)
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Milieu: Adage, Nocturne en Do dièse mineur (Extrait)
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Milieu: Petits sauts, Children's Polka (Extrait)
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Milieu: Piqués , Puck n°3, Op. 71 (Extrait)
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In Concert, Eteri & Jonas, Salurinn Iceland 2005
Nicolai Ghiaurov Sings Russian Songs And Arias
Iolanta: "Gospod moi, yesli greshen ya" (René's prayer)
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Eugene Onegin, Op. 24, TH.5 / Act 3: "Lyubvi vsye vozrasti pokorni"
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Aleko: "Ves' tabar spit" (Aleko's Cavatina)
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None But The Lonely Heart, Op. 6, No. 6 (Nyet, tolko tot, kto znal)
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Don Juan's Serenade, Op. 38, No. 1 (Serenada Don-Zhuana)
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Ya pomnu chudnoye mgnovenye (I recall a wonderful moment)
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Yunosha i deva (The Youth and the Maiden)
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Rzhevskaya, Bulakhov & Others: Russian Romances
Sergej Larin Sings Russian Opera Arias, Vol. 1
Sadko, Scene 4: Song of the Hindu Merchant (Hindu Merchant)
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Благовеста Карнобатлова-Добрева: Русские песни
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Mephistopheles's Song in Auerbach's Cellar (Arr. for Voice and Orchestra by Nikolay Rimsky-Korsakov)
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Art of Feodor Chaliapin: Songs and Romances, Vol. 1
Sviatolsav Richter plays Russian Composers
Prince Igor (Knyaz Igor), Act II: Merknet svet dnevnoy (Daylight fades)
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Why Must I Live and Grieve (Arr. for Soprano & Choir by Andrei Petrenko)
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Антология русской хоровой музыки A Capella
Choir of Leningrad Radio and Television Company
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リスト：ヴェネツィアとナポリ～ピアノ作品集
ナポリ風カンツォーネ S248ii；LWA85（完成年不祥 1842もしくは1848）
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Above the Mists - Echoes of the Mountain