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
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A Guided Tour of the Romantic Era, Vol. 3
Spellbinding Classics: Classical Music for the Witching Hour
Les contes d'Hoffmann (The Tales of Hoffmann): Barcarole
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Irish Tune from County Derry (version for orchestra)
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Fredmans epistlar (arr. J. Eriksson): Fredmans epistlar: No. 71. Ulla, min Ulla (arr. J. Eriksson for orchestra)
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Petite Suite: I. En bateau (arr. H. Busser for orchestra)
CSSR State Philharmonic Orchestra, Kosice
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Clarinet Concerto in B-Flat Major (reconstructed R. Meylan): I. Andante sostenuto
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3 nya dans-poem (3 New Dance Poems): No. 2. Pa graset under lindarna (In the Grass Under)
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Cello Concerto No. 2 in A Major: III. Rondo: Allegretto
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La Gioconda *: La Gioconda: Dance of the Hours
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Collegium Philarmonicum Chamber Orchestra
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Water Music Suite No. 2 in F Major, HWV 348: Water Music: Suite No. 1 in F Major, HWV 348: VI. Air
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The Gadfly Suite, Op. 97a: V. Barrel-Organ Waltz
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4 Akvareller (4 Watercolours): No. 1. Idyll (arr. J. Johansson)
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Flute Concerto No. 1 in G Major, K. 313: II. Adagio non troppo
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Concerto for Flute & Harp in C Major, K. 299: Concerto for Flute and Harp in C Major, K. 299: III. Rondo: Allegro
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Serenade for Strings, Op. 22, B. 52: Serenade in E Major, Op. 22, B. 52: IV. Larghetto
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Lieder ohne Worte, Book 5, Op. 62: Songs without Words (Selection): No. 30 in A Major, Op. 62/6, Spring Song
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Sonata No. 4 for Violin and Harpsichord in C Minor, BWV 1017: I. Siciliano (arr. J. Dvorak)
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Viola Concerto in G Major, TWV 51:G9: I. Largo
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Pastoralsvit, Op. 19: Pastoralsvit (Pastorale Suite), Op. 19: II. Romance
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Keyboard Concerto in F Minor, BWV 1056: Harpsichord Concerto in F Minor, BWV 1056: II. Largo
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3 Folkliga valser (3 Folk Waltzes): Folklig vals nr 2 (Folk Waltz No. 2)
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Cello Concerto No. 2 in A Major: II. Romance: Andantino
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Violin Sonata No. 17 in C Major, K. 296: II. Andante sostenuto
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Keyboard Sonata in C Minor, K.40/L.375/P.119
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5 Anecdotas: 5 Anecdotas: No. 2. Allegro moderato con grazia
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Ballet Suite No. 1 (arr. L. Atovmyan for orchestra): Ballet Suite No. 1: III. Romance (The Limpid Stream) (arr. L. Atovmyan)
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Sonata for Strings No. 3 in C Major: III. Moderato
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Faust: Faust, Ballet Music: V. Les Troyennes: Moderato con moto
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6 Hungarian Rhapsodies, S359/R441: Hungarian Rhapsody No. 2 in D Minor
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Part: Arvo Part - A Portrait (Kimberley)
Fratres (for strings and percussion; 1991 revision)
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Symphony No. 1, "Polyphonic": Second Movement
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St. John Passion: Passio: Passio Domini Nostri Jesu Christi secundum Joannem
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddff46ddeb7c71c56db58e6eb664d770bf86edb2a9afdfd4f5ff847b75ea3bd. 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/HKI193045406 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c7f98d2a833c07cb9287145abc107fc87b130e5c720c6423b802454ebb387. 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/GBAJU9900059 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e0f1c60778c92f1399ce78d012b748146a8cf8af8fc13419dae9760b4aa74f. 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/GBAJU9900166 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3400ee2060dd85e0e9775b1f2f05307d0b5ac64a493c98f83d96251382ad1f3. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBAJU9900167 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef7629c07921e89f1f50f582ab5af79f5c9b9f3d5a4596ddf0a44026a1bfe17. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBAJU9900168 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0793d96ecf6392bb59b1e9ca4fe2f6d57081b0383e5c6eec14dfec4eb3e709. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBAJU9900169 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30f88be41d15b5f31b2a009a8183e0f64128f76afdcc4a68469207e227ab913. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBAJU9900171 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6190c3113c79ed79029438e06c8a8f55368f90e6ef309c4f374fabcbd4eb924. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJU9900172 — a six-check JSON result.
Summa (version for string orchestra): Summa for Strings
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Sonic Rebellion - Alternative Classical Collection
Schumann: Kinderszenen, Op. 15 / Tchaikovsky: Serenade for Strings in C Major, Op. 48
Dvorak: String Quartet No. 12, "American" / Serenade for Strings
Sonata for Strings No. 4 in B-Flat Major: I. Allegro vivace
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Sonata for Strings No. 4 in B-Flat Major: II. Andantino
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Sonata for Strings No. 4 in B-Flat Major: III. Allegretto
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Sonata for Strings No. 5 in E-Flat Major: I. Allegro Vivace
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Sonata for Strings No. 5 in E-Flat Major: III. Allegretto
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Sonata for Strings No. 6 in D Major, "La tempesta": I. Allegretto spiritoso
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Sonata for Strings No. 6 in D Major, "La tempesta": II. Andante assai
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Sonata for Strings No. 6 in D Major, "La tempesta": III. Tempesta. Allegro
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Variations for Violin and Small Orchestra in C Major
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Janacek: Violin Sonata / Capriccio / Romance / Dumka
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f759220c91a3fb0a6ddb8d58126f7f830b9010ba04019d39cb2ae444a7ea23. 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/HKI199615701 — a six-check JSON result.
Festina lente for Strings and Harp ad Lib.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93e2b041681c98f0c6a53ead890c1319ea64d9bd74d241b29dc446c240831dc. 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/HKI199615705 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830cd83cd29f6a2f57c25b0920c6531d342c8586d3dfa45eff337adc4b30647e. 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/HKI199615707 — a six-check JSON result.
Cantus in Memory of Benjamin Britten for Strings and Bells
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Serenade in E Major, Op. 22, B. 52: IV. Larghetto
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Sonate für Streicher Nr. 1 G-Dur: I. Moderato
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Sonate für Streicher Nr. 1 G-Dur: II. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200ca0ad93658bc70ad8560bca430b094d71e7860b515a4c0a5f02abba6f687a. 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/HKI199811402 — a six-check JSON result.
Sonate für Streicher Nr. 1 G-Dur: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724c51d75820c626375791467c9f8c01a4f7957b1d5fbf02cfe2aa2a140a540a. 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/HKI199811403 — a six-check JSON result.
Sonata for Strings No. 2 in A Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ad14a809d36e65d6fcb1e34be8ef9ef42bfbd34ecf485235e804c5cf8177e5. 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/HKI199811404 — a six-check JSON result.
Sonata for Strings No. 2 in A Major: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e4552a15052e48e7144ec2ea0364915c99deea6a12f256ebbff2dbd251fe39. 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/HKI199811405 — a six-check JSON result.
Sonata for Strings No. 2 in A Major: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5737a21a233375ae11e50f81dffacbe2230467a3b84954860c2eeffa7cb296d5. 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/HKI199811406 — a six-check JSON result.
Sonata for Strings No. 3 in C Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1dcc4d2f40f0a0fc93fda09620fc78b7ba7b77445a7fea0661f72a85a3dd82. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199811407 — a six-check JSON result.
Sonata for Strings No. 3 in C Major: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569c5311f1f01838996297ba19b3bf6e9b2795097c25b31838338debb0e2e0bd. 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/HKI199811408 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd0f09ee5bd99110d62ffe6d158a42a8832d6c0068bb9a6aea217a0b8b70eec. 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/HKI199811409 — a six-check JSON result.
Andante e tema con variazioni for Clarinet and Orchestra in E-Flat Major
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Une Larme (arr. T. Benedek): 'Une Larme' for Double Bass
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Music for your Travel in Italy: Remeber Florence
Dvorak: String Quartet No. 12, "American" - Serenade for Strings