thumb|Giltburg in 2019 Boris Leonidovich Giltburg (; born June 21, 1984) is an Israeli classical pianist, born in the Soviet Union. Biography Giltburg was born into a Jewish family in Moscow, th
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 0xce8d4abd4efdf951e2e9ced56978b5c20e60600ff30e41a99d67760ef76f52c3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cf30bc2-3494-4ed8-88a6-aae7175925ec.json and https://artists.proofprofile.net/proofs/artist/5cf30bc2-3494-4ed8-88a6-aae7175925ec.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Schumann: Carnaval, Davidsbündlertänze & Papillons
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 0xde8bd096d5448782b278d7d7a271d9cee5e1e1c9f95474aa6d800ce60997e395. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191427142 — a six-check JSON result.
Piano Trio No. 1 in B-Flat Major, Op. 21, B. 51: I. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8255a4c9a1a558a21a360931f2194773ad08095cb8a425077d98361be15d4090. 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/CZA162201509 — a six-check JSON result.
Piano Trio No. 1 in B-Flat Major, Op. 21, B. 51: II. Adagio molto e mesto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39378e9ac67e7608edd5fe60f00c10272a0c25703e4f1132de2ec1e045daef56. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our 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/CZA162201510 — a six-check JSON result.
Piano Trio No. 1 in B-Flat Major, Op. 21, B. 51: III. Allegretto scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39978def9f054fd0b85dc3e80ebae31603f8c49a7ff63b289a2661d25b7067b2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our 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/CZA162201511 — a six-check JSON result.
Piano Trio No. 1 in B-Flat Major, Op. 21, B. 51: IV. Finale. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b54b77fe9513f06df6578552826f0e2fbe51b6ac18ddb7e090c28549013b09c. 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/CZA162201512 — a six-check JSON result.
Piano Trio No. 2 in G Minor, Op. 26, B. 56: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731fa3b7c2108a2fcaa1e81d52d33b2c37c473ddf3d4200d0f8fa9e10f142986. 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/CZA162201514 — a six-check JSON result.
Piano Trio No. 2 in G Minor, Op. 26, B. 56: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3e6f5e7ceba37e39db4fa3eec5af0f9ce7e2e6be4275d9665a8fd31b67753a. 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/CZA162201515 — a six-check JSON result.
Piano Trio No. 2 in G Minor, Op. 26, B. 56: III. Scherzo. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b90afb074841ce6a60465abc59fba5392abb2b4ff0ac03a47f6be940c8ab94. 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/CZA162201516 — a six-check JSON result.
Piano Trio No. 2 in G Minor, Op. 26, B. 56: IV. Finale. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14de426d45c9dc4f028ccf068f8ebbf5b0cfff17a2608f40723f1de46d9642b. 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/CZA162201517 — a six-check JSON result.
Piano Trio No. 3 in F Minor, Op. 65, B. 130: I. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164e5e578292e29c193e800f1967845d8aef7e24015de284b22195765fdbc17c. 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/CZA162201519 — a six-check JSON result.
Piano Trio No. 3 in F Minor, Op. 65, B. 130: II. Allegretto grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9bf3e276b8127d4240e1a3612cb5bac3e78419712e9f6d20961c3a9418b7f3. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/CZA162201520 — a six-check JSON result.
Piano Trio No. 3 in F Minor, Op. 65, B. 130: III. Poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0c84167c0ddd51fdc6faa171966156b5815e039924b4f6c4e142e2b3963a12. 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/CZA162201521 — a six-check JSON result.
Dumky for Piano Trio, Op. 90, B. 166: I. Lento maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb0dce84dbd0681851694a50548073d2c96d3556cb029428dba543e46c4c983. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/CZA162201524 — a six-check JSON result.
Dumky for Piano Trio, Op. 90, B. 166: II. Poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9144e22ad6a1c5ec04fce5dd3f903549ec898ae6bc34b01019d0e7199ff16e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our 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/CZA162201525 — a six-check JSON result.
Dumky for Piano Trio, Op. 90, B. 166: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84437c822b6d4ae2c5d6f6d7fbd67ce5816d8a2ac19e1aa2c0b8ceaa8cc30f2f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA162201526 — a six-check JSON result.
Dumky for Piano Trio, Op. 90, B. 166: IV. Andante moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f2520db7f715c688653d2da7c2bed1af71c9e85b982aeb1086d6fb88373ab7. 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/CZA162201527 — a six-check JSON result.
Dumky for Piano Trio, Op. 90, B. 166: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7513f738f516a99c7ab6a374a0a2d3b4f859d0eb6b28331b555f1d331d142af0. 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/CZA162201528 — a six-check JSON result.
Dumky for Piano Trio, Op. 90, B. 166: VI. Lento maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8e774e74c2dfbafea39920c1f167d99fae4234bba5d8e551156de734fdf505. 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/CZA162201529 — a six-check JSON result.
Beethoven: Piano Concertos Nos. 3 & 4, Opp. 37 & 58
Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Ii. Adagio un poco moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f848ae64ac640416682d4ff8280a48fd96a73cb37241e9804c63bd187193af9. 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/HKI199213605 — a six-check JSON result.
String Quartet No. 13 in B-flat Major, Op. 130: V. Cavatina, Adagio molto espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25892b1961332c2162c2d85e49ecaa62bd549cf8bd5063d0a980a97fa83d67b. 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/HKI199935905 — 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 0xae375756518e9df9b2ae0d94a4e5ec10916a0638d2f27ede3ae8676196e12203. 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/HKI199214304 — a six-check JSON result.
Violin Sonata No. 5 in F Major, Op. 24, "spring": Ii. Adagio molto espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5512613c47021052ebe88ea9e4de14434bf44029e3e6a5a6823f9a305ab19fb9. 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/HKI199217802 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2705ad32dbd6662ed9d35b268c78203d4cff3edc9867684402963a67fde6b8. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/HKI199940305 — a six-check JSON result.
Rachmaninov: Piano Concerto Nos. 1 & 4, Rhapsody on a Theme of Paganini
Piano Concerto No. 1 in F-Sharp Minor, Op. 1 (1917 Version): I. Vivace
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Piano Concerto No. 1 in F-Sharp Minor, Op. 1 (1917 Version): II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c074359868ad6f9a4f8fe2b8673b4c8c18ce6a6690ba3e82a86f575c8eaaa2. 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/HKI192300302 — a six-check JSON result.
Piano Concerto No. 1 in F-Sharp Minor, Op. 1 (1917 Version): III. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc830f3d0ea83763eef95c983d708ac2ea7dfca8bfc0f220fd132b09fb8f2189. 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/HKI192300303 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 6. L'istesso tempo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89990625426c6a20e93fab6c280a20567745d87d18c1131537eb5076abd149f. 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/HKI192300311 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 7. Meno mosso, a tempo moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b65a8bb7ac076a2b4d4725642f46a6d6f1a0ec29ee172ad209e0d7cff5fedfe. 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/HKI192300312 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 8. Tempo I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c16dc7a5b9d6526f8568329d9a1999d0d5983aefd2a092e3af45a22065344c4. 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/HKI192300313 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 9. L'istesso tempo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b928196652e1b634daad83a55ba12dc1d29094fd409b3a049e4055f1a4fa203. 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/HKI192300314 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 10. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf932878f922fa01de83bf6d10ad746e0ffc60a7f7baf371c9e1a6c9235f487fc. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/HKI192300315 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 11. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4d2c03117af6427dda5a0aa97e2ff37e6ef4f91954f3448c09f9afa4c660e1. 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/HKI192300316 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 12. Tempo di menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ac4ab21447e02a0c4e1a9e2bf507331e2b54610be8497e9a5e9857029dcef2. 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/HKI192300317 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 14. L'istesso tempo
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Rhapsody on a Theme of Paganini, Op. 43: Variation 15. Più vivo. Scherzando
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Rhapsody on a Theme of Paganini, Op. 43: Variation 16. Allegretto
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Rhapsody on a Theme of Paganini, Op. 43: Variation 17. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f88a0bd0d8aed728bf5d2ce373f9b4200c1c8ead8eeef78b4cc85ae12431b2. 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/HKI192300322 — a six-check JSON result.
Rhapsody on a Theme of Paganini, Op. 43: Variation 18. Andante cantabile
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Rhapsody on a Theme of Paganini, Op. 43: Variation 20. Un poco più vivo
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Rhapsody on a Theme of Paganini, Op. 43: Variation 22. Un poco più vivo (alla breve)
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Rhapsody on a Theme of Paganini, Op. 43: Variation 23. L'istesso tempo
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Rhapsody on a Theme of Paganini, Op. 43: Variation 24. A tempo un poco meno mosso
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Piano Concerto No. 4 in G Minor, Op. 40 (1941 Version): I. Allegro vivace (alla breve)
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Piano Concerto No. 4 in G Minor, Op. 40 (1941 Version): II. Largo
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Piano Concerto No. 4 in G Minor, Op. 40 (1941 Version): III. Allegro vivace
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Piano Quintet in F Minor, Op. 34: I. Allegro non troppo
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Piano Quintet in F Minor, Op. 34: II. Andante, un poco adagio
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Piano Quintet in F Minor, Op. 34: III. Scherzo. Allegro - Trio
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Piano Quintet in F Minor, Op. 34: IV. Finale. Poco sestenuto - Allegro non troppo
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String Quintet No. 2 in G Major, Op. 111: I. Allegro non troppo, ma con brio
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String Quintet No. 2 in G Major, Op. 111: II. Adagio
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String Quintet No. 2 in G Major, Op. 111: III. Un poco allegretto
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String Quintet No. 2 in G Major, Op. 111: IV. Vivace ma non troppo presto
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Beethoven 32, Vol. 9: Piano Sonatas Nos. 30-32
Piano Sonata No. 30 in E Major, Op. 109: I. Vivace, ma non troppo - Adagio espressivo
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Piano Sonata No. 30 in E Major, Op. 109: II. Prestissimo
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Piano Sonata No. 30 in E Major, Op. 109: III. Gesangvoll, mit innigster Empfindung. Andante molto cantabile ed espressivo
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Beethoven 32, Vol. 8: Piano Sonatas Nos. 27-29
Beethoven 32, Vol. 7: Piano Sonatas Nos. 23-26
Beethoven 32, Vol. 6: Piano Sonatas Nos. 19-22
Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
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Beethoven 32, Vol. 5: Piano Sonatas Nos. 16-18
Beethoven 32, Vol. 4: Piano Sonatas Nos. 12-15
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": II. Allegretto
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": III. Presto agitato
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Beethoven 32, Vol. 3: Piano Sonatas Nos. 8-11
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Beethoven 32, Vol. 2: Piano Sonatas Nos. 4-7
Beethoven 32, Vol. 1: Piano Sonatas Nos. 1-3
Morceaux de fantaisie, Op. 3: No. 2 in C-Sharp Minor. Prélude
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10 Préludes, Op. 23: No. 1 in F-Sharp Minor. Largo
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10 Préludes, Op. 23: No. 2 in B-Flat Major. Maestoso
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10 Préludes, Op. 23: No. 3 in D Minor. Tempo di minuetto
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10 Préludes, Op. 23: No. 4 in D Major. Andante cantabile
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10 Préludes, Op. 23: No. 5 in G Minor. Alla marcia
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10 Préludes, Op. 23: No. 6 in E-Flat Major. Andante
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10 Préludes, Op. 23: No. 7 in C Minor. Allegro
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10 Préludes, Op. 23: No. 8 in A-Flat Major. Allegro vivace
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10 Préludes, Op. 23: No. 9 in E-Flat Minor. Presto
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10 Préludes, Op. 23: No. 10 in G-Flat Major. Largo
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13 Préludes, Op. 32: No. 1 in C Major. Allegro vivace
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13 Préludes, Op. 32: No. 2 in B-Flat Minor. Allegretto
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13 Préludes, Op. 32: No. 3 in E Major. Allegro vivace
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13 Préludes, Op. 32: No. 4 in E Minor. Allegro con brio
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13 Préludes, Op. 32: No. 5 in G Major. Moderato
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13 Préludes, Op. 32: No. 6 in F Minor. Allegro appassionato
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13 Préludes, Op. 32: No. 7 in F Major. Moderato
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13 Préludes, Op. 32: No. 8 in A Minor. Vivo
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13 Préludes, Op. 32: No. 9 in A Major. Allegro moderato
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13 Préludes, Op. 32: No. 10 in B Minor. Lento
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13 Préludes, Op. 32: No. 11 in B Major. Allegretto
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13 Préludes, Op. 32: No. 12 in G-Sharp Minor. Allegro
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13 Préludes, Op. 32: No. 13 in D-Flat Major. Grave
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Rachmaninoff: Piano Concerto No. 3 - Variations on a Theme of Corelli
Piano Concerto No. 3 in D Minor, Op. 30: I. Allegro ma non tanto
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Piano Concerto No. 3 in D Minor, Op. 30: II. Intermezzo. Adagio - Un poco più mosso
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Piano Concerto No. 3 in D Minor, Op. 30: III. Finale. Alla breve
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Variations on a Theme of Corelli, Op. 42
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Piano Quintet No. 2, Op. 81, B. 155: I. Allegro, ma non tanto
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Piano Quintet No. 2, Op. 81, B. 155: II. Dumka. Andante con moto
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Piano Quintet No. 2, Op. 81, B. 155: III. Scherzo - Furiant. Molto vivace
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Piano Quintet No. 2, Op. 81, B. 155: IV. Finale. Allegro
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String Quintet, Op. 97, B. 180: I. Allegro non tanto
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String Quintet, Op. 97, B. 180: II. Allegro vivo
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String Quintet, Op. 97, B. 180: III. Larghetto
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String Quintet, Op. 97, B. 180: IV. Finale. Allegro giusto
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Rachmaninov: Piano Concerto No. 2 in C Minor, Op. 18 & Études-tableaux, Op. 33
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Shostakovich: Piano Concertos Nos. 1 & 2 and String Quartet No. 8
Piano Concerto No. 2 in F Major, Op. 102: II. Andante
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Rachmaninoff: Études-tableaux, Op. 39 & 6 Moments musicaux, Op. 16
Études-tableaux, Op. 39: No. 1, Allegro agitato
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Études-tableaux, Op. 39: No. 2, Lento assai
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Études-tableaux, Op. 39: No. 3, Allegro molto
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Études-tableaux, Op. 39: No. 4, Allegro assai
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Études-tableaux, Op. 39: No. 5, Appassionato
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Études-tableaux, Op. 39: No. 8, Allegro moderato
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Études-tableaux, Op. 39: No. 9, Allegro moderato
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6 Moments musicaux, Op. 16: No. 1, Andantino
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6 Moments musicaux, Op. 16: No. 2, Allegretto
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6 Moments musicaux, Op. 16: No. 3, Andante cantabile
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6 Moments musicaux, Op. 16: No. 4, Presto
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6 Moments musicaux, Op. 16: No. 5, Adagio sostenuto
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6 Moments musicaux, Op. 16: No. 6, Maestoso
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Beethoven: Piano Sonatas Nos. 8, 21 & 32
Rachmaninov, Grieg & Liszt: Romantic Sonatas
Piano Sonata No. 2 in B-Flat Minor, Op. 36 (1931 version): I. Allegro agitato - Meno mosso
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Piano Sonata in E Minor, Op. 7: I. Allegro moderato
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Piano Sonata in E Minor, Op. 7: IV. Finale
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Piano Sonata in B Minor, S178/R21: Andante sostenuto -
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Pictures at an Exhibition: The Old Castle, Andantino molto
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Pictures at an Exhibition: The Great Gate of Kiev, Allegro alla breve
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Rachmaninov: Rhapsody on a Theme of Paganini, Op. 43: Variation 18. Andante cantabile
Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
Andante in F Major, WoO 57 "Andante favori"
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String Quartet No. 8 in C Minor, Op. 110: II. Allegro molto (Arr. B. Giltburg for Piano)
Rachmaninoff: Piano Sonatas Nos. 1 & 2 & Isle of the Dead, Op. 29 (Arr. for Piano by Georgy Kirkor & Boris Giltburg)
Piano Sonata No. 1 in D Minor, Op. 28: I. Allegro moderato
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Piano Sonata No. 1 in D Minor, Op. 28: II. Lento
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Piano Sonata No. 1 in D Minor, Op. 28: III. Allegro molto
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Piano Sonata No. 2 in B-Flat Minor, Op. 36 (1931 Version): I. Allegro agitato
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Piano Sonata No. 2 in B-Flat Minor, Op. 36 (1931 Version): II. Non allegro
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Piano Sonata No. 2 in B-Flat Minor, Op. 36 (1931 Version)
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Isle of the Dead, Op. 29 (Arr. for Piano by Georgy Kirkor & Boris Giltburg)
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Schumann: Piano Sonata No.1 In F Sharp Minor Op.11
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I. Andante un poco maestoso - Allegro molto vivace
Polish National Radio Symphony Orchestra
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6d1dcfff02b8fd3d6e4c9568bb0c5c189ab1afc4887dec5d6b6de62460fd7d. 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/HKI199305114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01091b944e1a97f78756e134cd87223c127072b2b3ef3b248c85f71b3f69df0. 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/HKI192034810 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd566a08e72c08c942141efae28843f4c5d0f51906f59cd550059ba8f9e51e1ef. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199305112 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd294de1408d36c6312636bb1ba9939527aa4e9f9238eaf4ff75d9280eb6c74. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199701507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c401f0c02e2a8104907f341da691fc5639665eab178a454f5698b066cf092d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191427135 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8bd096d5448782b278d7d7a271d9cee5e1e1c9f95474aa6d800ce60997e395. 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/HKI191427142 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09aa4bea2ff541b25d75b9497b610e65ff4ff2252bad5c694a94007250d00a6d. 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/HKI191261921 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6bc6b0ac34530f3d66bb03070233fde5842dcddc0c189b37241c91a0256638. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our 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/HKI199493302 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617d983633059fc348b53dff606fa8eb2108e2a1a54f570d9ed161c54e54e739. 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/HKI190842904 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83334a253976e5d029d70cccf565a1758169dfcef0b0bf704190feb8ee1fb6cb. 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/HKI199305101 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5521221337ec22729fb99de592fe673eb457fe0d0c0d568a8ece595ad45e6052. 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/HKI190426307 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a90a5ecaea1ca1bedb1dc79aa8759b75e2d04574b22ff33f87ca40fd8009b62. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191427102 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3096ac134e1caebb732c9a57d18d28226d251d4e06b05e1a7cb7880b98e707fa. 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/HKI190515502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7e81b22feb6cabcec47de6b9ea7b4c85de2c30cc60636624f4d512c8746bdd. 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/HKI199701522 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335bc79bd18b2e0091f98d9853f9e5a02331d748da96c48e4f9d5b17b189361d. 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/HKI190831310 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe860c8918b1de94fe395b535ccef96ffd227e552955a88ec624c3f16dbe88c63. 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/HKI199305009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf0fbf0a2fc46ccb9d797e1d744f587afacb20de07e9192b572a39bd8b70eca. 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/HKI190045108 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872721e12b387c4c1b79a09c6feff360973b889077be123c6369b477d326605b. 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/HKI199701501 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108825db4590e10b0e6f654e36ed8c5ee86fb1ec28cf16f751ed9b8ddd8aa110. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199304701 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0f932e9a6e5b218f6b2c46f8992d5e4f35041b20e1af1a2c56ff6f2dfa9458. 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/HKI199493314 — a six-check JSON result.
Rachmaninoff: Piano Sonata No. 2: II. Non allegro - Lento
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