1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ed95cca53caf267d50e59b438bdd825c631a9d9ca803ef7e6635468fdb6a1c. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15ab9384-0249-4189-90c2-ab242fa5b8dc.json and https://artists.proofprofile.net/proofs/artist/15ab9384-0249-4189-90c2-ab242fa5b8dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Scharwenka: Piano Trios, Op. 110 & Op. 112 & Cello Sonata, Op. 116
Piano Trio in G Major, Op. 112: I. Allegro moderato
Piano Trio in G Major, Op. 112: II. Andante tranquillo
Piano Trio in G Major, Op. 112: III. Allegro con spirito
Sonata for Violoncello and Piano G Minor, Op. 116: Lento Patetico - Andante - Allegro con spirito
Piano Trio in C-Sharp Minor, Op. 100: I. Lento tranquillo
Piano Trio in C-Sharp Minor, Op. 100: II. Allegro
Piano Trio in C-Sharp Minor, Op. 100: III. Allegro apassionato
String Quartet in D Minor, Op. 117: I. Allegro moderato
String Quartet in D Minor, Op. 117: II. Intermezzo. Allegretto vivace
String Quartet in D Minor, Op. 117: III. In memoriam. Andante tranquillo
String Quartet in D Minor, Op. 117: IV. Finale. Allegro ma non tanto ma con spirito
String Quartet in D Major, Op. 120: I. Allegro moderato
String Quartet in D Major, Op. 120: II. Tempo di minuetto
String Quartet in D Major, Op. 120: III. Andante tranquillo e mesto
String Quartet in D Major, Op. 120: IV. Pastorale. Die Kohlhasenbrücker Fuge
Piano Quintet in B Minor, Op. 118: I. Allegro ma non tanto ma energico
Piano Quintet in B Minor, Op. 118: II. Adagio con intimo sentimento
Piano Quintet in B Minor, Op. 118: III. Moderato - Finale. Allegro
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1248ed860c4dfe75bb2b1cc1820f71dacc37f7dad68d14c8ad7605ec348edbb8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA149988911.
Scharwenka: Frühlingswogen - Arkadische Suite - Liebeshnacht
Arkadisceh Sutie in B Major for Orchestra, Op. 76: I. Frühlingswogen, Ländliches Fest
Arkadisceh Sutie in B Major for Orchestra, Op. 76: II. Damon und Daphne
Arkadisceh Sutie in B Major for Orchestra, Op. 76: III. Schäfers Liebesklage und Ständchen
Arkadisceh Sutie in B Major for Orchestra, Op. 76: IV. Brautzug und Hochzeitsfeier
Fantasy Piece for Orchestra, Op. 40 "Liebesnacht"
Philipp Scharwenka: Frühlingswogen, Arkadische Suite, Liebeshnacht
Arkadisceh Sutie in B major for orchestra, Op.76: I. Frühlingswogen, Ländliches Fest
Arkadisceh Sutie in B major for orchestra, Op.76: II. Damon und Daphne
Arkadisceh Sutie in B major for orchestra, Op.76: III. Schäfers Liebesklage und Ständchen
Arkadisceh Sutie in B major for orchestra, Op.76: IV. Brautzug und Hochzeitsfeier
Liebesnacht, fantasy piece for orchestra, Op.40
Dramatische Phantasie, Op. 108: I. Allegro patetico
Dramatische Phantasie, Op. 108: II. Andante tranquillo
Dramatische Phantasie, Op. 108: III. Allegro
Zwei Polnische Volkstanze, Op. 20: No. 1, Polonaise in B Minor "Con fuoco"
Zwei Polnische Volkstanze, Op. 20: No. 2, Mazurka in D Major "Con spirito"
Violin Sonata in B Minor, Op. 110: I. Allegro
Violin Sonata in B Minor, Op. 110: IIa. Largamente
Violin Sonata in B Minor, Op. 110: IIb. Allegretto con moto
Violin Sonata in E Minor, Op. 114: I. Allegro moderato
Violin Sonata in E Minor, Op. 114: II. Andante tranquillo
Violin Sonata in E Minor, Op. 114: III. Finale: Allegro animato
Suite for Violin & Piano in G Minor, Op. 99: I. Toccata: Allegro moderato
Suite for Violin & Piano in G Minor, Op. 99: II. Ballade: Andante con moto
Suite for Violin & Piano in G Minor, Op. 99: III. Intermezzo: Allegro non tanto e con spirito
Suite for Violin & Piano in G Minor, Op. 99: IV. Recitativ und Tarantella: Largo - Molto allegro vivace
5 Romantische Episoden, Op. 65: No. 1, Feurig bewegt
5 Romantische Episoden, Op. 65: No. 2, Langsam, nicht schleppend
5 Romantische Episoden, Op. 65: No. 3, Langsam, ausdrucksvoll
5 Romantische Episoden, Op. 65: No. 4, Kräftig und feurig
5 Romantische Episoden, Op. 65: No. 5, Einfach, ruhig
6 Tonbilder in kleinem Rahmen, Op. 69: No. 1, Frühlingsbotschaft
6 Tonbilder in kleinem Rahmen, Op. 69: No. 2, Stimmungsbild
6 Tonbilder in kleinem Rahmen, Op. 69: No. 3, Widmung
6 Tonbilder in kleinem Rahmen, Op. 69: No. 4, Polnisch
6 Tonbilder in kleinem Rahmen, Op. 69: No. 5, Pastorale
6 Tonbilder in kleinem Rahmen, Op. 69: No. 6, Scherzino
Für die Jugend, Op. 71: No. 1, Andantino elegico
Für die Jugend, Op. 71: No. 2, Allegretto grazioso
Für die Jugend, Op. 71: No. 4, Lento espressivo
Für die Jügend, Op. 71: No. 5, Allegretto con spirito
Für die Jügend, Op. 71: No. 6, Moderato con espressione
Piano Trio in E Minor, Op. 121: I. Andante tranquillo
Piano Trio in E Minor, Op. 121: II. Un poco lento
Piano Trio in E Minor, Op. 121: III. Finale. Allegretto con spirito
Viola Sonata in G Minor, Op. 106: I. Fantasia
Viola Sonata in G Minor, Op. 106: II. Allegro - Con moto
Viola Sonata in G Minor, Op. 106: III. Allegro
Piano Trio in A Major, Op. 105: I. Andante sostenuto
Piano Trio in A Major, Op. 105: II. Allegretto con spirito
4 Konzertstücke, Op. 104: No. 1, Legende
4 Konzertstücke, Op. 104: No. 3, Notturno
4 Konzertstücke, Op. 104: No. 4, Alla polacca
Violin Sonata in B Minor, Op. 110: II. Largamente - Andante con moto - Allegro con moto
Violin Sonata in E Minor, Op. 114: III. Finale. Allegro animato
Suite for Violin & Piano in G Minor, Op. 99: I. Toccata
Suite for Violin & Piano in G Minor, Op. 99: II. Ballade
Suite for Violin & Piano in G Minor, Op. 99: III. Intermezzo
Suite for Violin & Piano in G Minor, Op. 99: I‎‏V. Recitativ und Tarantella
Humoreske und Mazurka, Op. 13: No. 1, Humoreske in Tanzform
Humoreske und Mazurka, Op. 13: No. 2, Mazurka
2 Nocturnes, Op. 16: No. 1, Andante con moto
2 Nocturnes, Op. 16: No. 2, Andantino moderato
3 Humoresken, Op. 31: No. 3, Allegro con spirito
4 Bagatelles, Op. 39: No. 2, Air de danse
4 Bagatelles, Op. 39: No. 3, Chant sans paroles
2 Rhapsodieen, Op. 85: No. 2, Allegro molto
Violin Concerto in G Major, Op. 95: I. Allegro
Lassen, P. Scharwenka & Langgaard: Violin Concertos (Hyperion Romantic Violin Concerto 22)
Violin Concerto in G Major, Op. 95: II. Andante tranquillo
Violin Concerto in G Major, Op. 95: III. Allegro non tanto