Sophie Pacini (born December 12, 1991, in Munich) is a German-Italian pianist. Life and professional career Sophie Pacini born of a German mother and an Italian father, passed her concert exam with
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 0x02eb2ce489b1715df78c373fd7472e06eba360f2ccc1f12f0987bafe1dde7ed3. 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/b6bb9e3c-f933-40d1-82a2-aaa43b3c8577.json and https://artists.proofprofile.net/proofs/artist/b6bb9e3c-f933-40d1-82a2-aaa43b3c8577.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Poulenc, Bernstein, Weinberg, Prokofiev: Boundless
Weinberg: Sonata for Clarinet and Piano, Op. 28: II. Allegretto
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 0xabf39da271aab1fe307f00b887395b284c194bd8b0db789c15ebf7ddd09770ac. 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/GBAYC1800761 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88878a52a6ebd3424eb87af88b2ed187383e7a2433b7852ae8ba801db0f2f177. 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/GBAYD9300290 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1701d2207fb4431238b329a183a7a2c6b0632cc28ae0ec08c3437cd758dc99ee. 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/GBAYC9401155 — a six-check JSON result.
International Women's Day: Classical Composers
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0a67c4ee3c2620f2f7cfe71e666be0392f2b41d15dace3fbd015dfcf9329a6. 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/BER182281102 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79bed8e4eb7e7a1640e3e14187078aaff4afd1981ca9429c76213a6818cc364. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our 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/BER182281103 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9116799e454d2f5b46c4b6bdb89783a5056e4d2abe356414585db5c695bc775. 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/BER182281104 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd586bf94607f961c34dc0a810ffa05261ff50e3e1d80062ef2bd670ebbeccc88. 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/BER182281105 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12056d032091416d78951cfbfd06863d96aafc16ce1430b2a7c9dff981ab54af. 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/BER182281106 — a six-check JSON result.
Waltzes, Op. 70: No. 1, Molto vivace in G-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfe31b8c6a68c4667a35f9519a6616ae01e1ff61b7df6129259e17f26f1908f. 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/BER182281109 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691c6fa0082cc482eecce3161cc13e09c26e02de8b6c0d237ed8e6f5de821b0d. 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/BER182281110 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469171b2978d36dadaa98954de0e8fbaab0f06c59644a35dc54d984853e4fe67. 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/BER182281112 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb298b91a7ae59a8a51119f70bac0e462b9b608a48a557e71bd5e8f1cee2e27. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182281114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4114a51be86b021e5e84d05634e8929386d198e4fb7eded1a27789ba5835ef7. 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/BER182281116 — a six-check JSON result.
12 Variations on ”Ah, vous dirai-je Maman“, K. 265
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1b925e39d8f145855084ee2ce447a234d75f16b9e41e2dcdd9e3d5da919977. 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/DELN22050001 — a six-check JSON result.
Piano Sonata No. 8 in A Minor, K. 310: I. Allegro maestoso
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf2806693b6af407ca3b7103924e8aced79972a64e4ada62c9be7fb908b56e7. 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/DELN22050011 — a six-check JSON result.
Schumann / Arr. Liszt: Widmung, Op. 25 No. 1, S. 566a
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Schumann, Clara: Scherzo No. 2 in C Minor, Op. 14
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Schumann: 8 Fantasiestücke, Op. 12: I. Des Abends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c12a68f0b7be394d97f15d97abea47726b3a530c0a7bc74c8e276931f8c1cf3. 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/GBAYC1703159 — a six-check JSON result.
Schumann: 8 Fantasiestücke, Op. 12: II. Aufschwung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a3976bfaf9f78ed1775d2fbe2c88b0b945ee75a6c0933c2995f73ac37f2087. 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/GBAYC1703160 — a six-check JSON result.
Schumann: 8 Fantasiestücke, Op. 12: III. Warum?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba549bcb51dcb770f91d070bf5d7dbe23265a55ad0c09ac65a41cd69c45d759. 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/GBAYC1703161 — a six-check JSON result.
Schumann: 8 Fantasiestücke, Op. 12: V. In der Nacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67eac53c40dbd3be72f0cfc72338119c793979727f320a5b044d836553ff560. 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/GBAYC1703163 — a six-check JSON result.
Schumann: 8 Fantasiestücke, Op. 12: VI. Fabel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bff3ada554eb597a5e0384eaa535939294f9762ab9e3d7838a1c4c912b4716. 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/GBAYC1703164 — a six-check JSON result.
Schumann: 8 Fantasiestücke, Op. 12: VII. Traumes Wirren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a07423cf23aa0fdb38c16217743456477706840a89ccb819b1a35fcd221ff7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our 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/GBAYC1703165 — a six-check JSON result.
Schumann: 8 Fantasiestücke, Op. 12: VIII. Ende vom Lied
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107b1044364ec3018475db3675db710bef1333b1dcfce9a9d7a9c698920efd85. 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/GBAYC1703167 — a six-check JSON result.
Mendelssohn: Variations sérieuses, Op. 54
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Mendelssohn: 6 Lieder ohne Worte, Op. 19b: No. 1 in E Major
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Mendelssohn: 6 Lieder ohne Worte, Op. 30: No. 3 in E Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60248bd3de26be19d5b1915ca5b095239e3640664c854fb278a5fc9e95f0c284. 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/GBAYC1703170 — a six-check JSON result.
Mendelssohn: 6 Lieder ohne Worte, Op. 62: No. 6 in A Major, "Frühlingslied"
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Mendelssohn: 6 Lieder ohne Worte, Op. 67: No. 1 in E-Flat Major
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Mendelssohn: Rondo capriccioso in E Major, Op. 14
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Mendelssohn-Hensel: 4 Lieder, Op. 8: No. 3 in D-Flat Major
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Schumann, Clara: 3 Romances, Op. 11: No. 1 in E-Flat Minor
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Mendelssohn-Hensel: 6 Mélodies, Opp. 4 & 5: No. 4 in B Major
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Beethoven: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
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Liszt: 6 Consolations, S. 172: No. 2 in E Major
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Liszt: Overture to Tannhäuser - Concert Paraphrase, S. 442
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Liszt: Reminiscences de Don Juan, S. 418
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Liszt: Liebestraum No. 3 in A-Flat Major, S. 541: III. "O lieb so lang du lieben kannst"
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3 Nocturnes, Op. 9: No 2 in E-Flat Major. Andante
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Schumann: Carnaval, Op. 9; Intermezzi, Op. 4 / Liszt: Sonata in B Minor, S. 178
Schumann: Piano Concerto - Mozart: Piano Concerto
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Great Women Composers In Classical Music: Clara Schumann
3 Romances, Op. 11: No. 1 in E-Flat Minor
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Czech Suite, B. 93: IV. Romanza (Andante con moto)
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Nocturnes, Op. 9: No. 1, Larghetto in B-Flat Minor
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Preludes, Op. 28: No. 6, Lento assai in B Minor
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto
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Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 13, Waltz of the Flowers
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Pictures at an Exhibition: X. The Great Gate of Kiev
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Kinderszenen, Op. 15: I. Von fremden Ländern und Menschen
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Romances sans paroles, Op. 76: I. Souvenance
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Album für die Jugend, Op. 68: No. 38, Winterszeit I
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24 Preludes, Op. 28: No. 15 in D-Flat Major "Raindrop Prelude"
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Suite bergamasque, CD 82: III. Clair de lune
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3 Intermezzi, Op. 117: No. 1 in E-Flat Major. Andante moderato
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3 Intermezzi, Op. 117: No. 2 in B-Flat Minor. Andante non troppo e con molto espressione
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3 Intermezzi, Op. 117: No. 3 in C-Sharp Minor. Andante con moto
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4 Impromptus, D. 935 (Op. 142): No. 2 in A-Flat Major. Allegretto
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Schumann: Kinderszenen, Op. 15: VII. Träumerei
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