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 0xd3b3b23942827b5ae737df97ece6a6340178ec9060946f0c6cf78ec1d8cc4b8b. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2187b94-2358-4b38-b6d8-1b3e291f1eea.json and https://artists.proofprofile.net/proofs/artist/b2187b94-2358-4b38-b6d8-1b3e291f1eea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rhapsodie: French Works for Clarinet & Piano
Clarinet Sonata, FP 184: I. Allegro tristamente
Clarinet Sonata, FP 184: III. Allegro con fuoco
Vocalise-étude en forme de habanera, M. 51
Rhapsody for Clarinet & Piano, L. 116, CD 124, "Première Rhapsodie"
Clarinet Sonata in E-Flat Major, Op. 167: I. Allegretto
Clarinet Sonata in E-Flat Major, Op. 167: II. Allegro animato
Clarinet Sonata in E-Flat Major, Op. 167: III. Lento
Clarinet Sonata in E-Flat Major, Op. 167: IV. Molto allegro
Aria (Arr. of Vocalise No. 2 by A. Hoérée)
Poulenc / Ravel / Debussy / Saint-Saens / Roussel / Milhaud: Works for Clarinet and Piano
Clarinet Sonata, FP 184: I. Allegro tristamente (Allegretto)
Clarinet Sonata, FP 184: II. Romanza (Tres calme)
Clarinet Sonata, FP 184: III. Allegro con fuoco (Tres anime)
Piece en forme de habanera (Arr. G. De Peyer)
Première rhapsodie, L. 116: Premiere rapsodie
Clarinet Sonata in E-Flat Major, Op. 167, R. 147: I. Allegretto
Clarinet Sonata in E-Flat Major, Op. 167, R. 147: II. Allegro animato
Clarinet Sonata in E-Flat Major, Op. 167, R. 147: III. Lento
Clarinet Sonata in E-Flat Major, Op. 167, R. 147: IV. Molto allegro
Aria : Aria (arr. Of Vocalise No. 2) [Arr. A. Hoeree]
Bax, Bliss & Vaughan Williams: British Works For Clarinet
Sonata in B-Flat for Clarinet and Piano: I. Molto moderato
Sonata in B-Flat for Clarinet and Piano: II. Vivace
Six Studies in English Folksong: I. Adagio
Six Studies in English Folksong: II. Andante sostenuto
Six Studies in English Folksong: III. Larghetto
Six Studies in English Folksong: IV. Lento
Six Studies in English Folksong: V. Andante tranquillo
Six Studies in English Folksong: VI. Allegro vivace
Quintet for Clarinet and Strings: I. Moderato
Quintet for Clarinet and Strings: II. Allegro molto
Quintet for Clarinet and Strings: III. Adagietto espressivo - Allegro moderato
Quintet for Clarinet and Strings: IV. Allegro energico
Bax: Clarinet Sonata / Bliss: Clarinet Quintet / Vaughan Williams: 6 Studies in English Folksong
6 Studies in English Folksong: No. 1, Adagio (Version for clarinet and piano)
6 Studies in English Folksong: No. 2, Andante sostenuto (Version for clarinet and piano)
6 Studies in English Folksong: No. 3, Larghetto (Version for clarinet and piano)
6 Studies in English Folksong: No. 4, Lento (Version for clarinet and piano)
6 Studies in English Folksong: No. 5, Andante tranquillo (Version for clarinet and piano)
6 Studies in English Folksong: No. 6, Allegro vivace (Version for clarinet and piano)
Clarinet Quintet, F. 20: II. Allegro molto
Clarinet Quintet, F. 20: III. Adagietto espressivo - Allegro moderato
Clarinet Quintet, F. 20: IV. Allegro energico
Mozart, Schumann & Bruch: Clarinet Trios
Märchenerzählungen, Op. 132: I. Lebhaft, nicht zu schnell
Märchenerzählungen, Op. 132: II. Lebhaft und sehr markirt
Märchenerzählungen, Op. 132: III. Ruhiges Tempor, mit zartem Ausdruck
Märchenerzählungen, Op. 132: IV. Lebhaft, sehr markirt
Clarinet Trio No. 4 in E-Flat Major, K. 498, "Kegelstatt": I. Andante
Clarinet Trio No. 4 in E-Flat Major, K. 498, "Kegelstatt": II. Menuetto and Trio
Clarinet Trio No. 4 in E-Flat Major, K. 498, "Kegelstatt": III. Rondo. Allegretto
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 1 in A Minor
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 2 In B Minor
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 3 in C-Sharp Minor
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 4 in D Minor
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 5 in F Minor
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 6 in G Minor
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 7 in B Major
Eight Pieces for Clarinet, Viola and Piano, Op. 83: No. 8 in E-Flat Major
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 0xe6466b1d1d05f8c539bc54f11306cb20a86617e5354461a012148ad0e6b9f07b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9007113.
Schumann: Marchenerzahlungen / Mozart: Piano Trio No. 2, "Kegelstatt" / Bruch: 8 Pieces
Märchenerzählungen, Op. 132: I. Lebhaft, nicht zu schnell (Version for clarinet, viola and piano)
Märchenerzählungen, Op. 132: II. Lebhaft und sehr markirt (Version for clarinet, viola and piano)
Märchenerzählungen, Op. 132: III. Ruhiges Tempor, mit zartem Ausdruck (Version for clarinet, viola and piano)
Märchenerzählungen, Op. 132: IV. Lebhaft, sehr markirt - Etwas ruhigeres Tempo - Erstes Tempo (Version for clarinet, viola and piano)
Piano Trio in E-Flat Major, K. 498 "Kegelstatt": I. Andante
Piano Trio in E-Flat Major, K. 498 "Kegelstatt": II. Menuetto
Piano Trio in E-Flat Major, K. 498 "Kegelstatt": III. Rondo. Allegretto
8 Pieces, Op. 83: No. 2, Allegro con moto
8 Pieces, Op. 83: No. 3, Andante con moto
8 Pieces, Op. 83: No. 4, Allegro agitato
8 Pieces, Op. 83: No. 5, Rumanische Melodie. (Andante)
8 Pieces, Op. 83: No. 6, Nachtgesang: (Andante con moto)
8 Pieces, Op. 83: No. 7, Allegro vivace, ma non troppo
Clarinet Concerto No. 2, Op. 128: I. Andante
Clarinet Concerto No. 2, Op. 128: II. Presto
Clarinet Concertino No. 2: I. Poco lento
Clarinet Concertino No. 2: III. Allegro ritmico
Wordsworth Miniatures: No. 1, Calm Is the Fragrant Air
Wordsworth Miniatures: No. 2, Water on a Starry Night
Wordsworth Miniatures: No. 3, Thoughts That Often Lie Too Deep for Tears
Wordsworth Miniatures: No. 4, The Cataracts Blow Their Trumpets
Quartet for the End of Time: III. Abyss of Birds
2 Memorials (Version for Clarinet): No. 1, Trier
2 Memorials (Version for Clarinet): No. 2, Memorial
3 Pieces for Clarinet: No. 1, Moderato. Rubato
3 Pieces for Solo Clarinet: No. 1, Sempre piano e molto tranquillo
3 Pieces for Solo Clarinet: No. 2, Eighth Note = 168
3 Pieces for Solo Clarinet: No. 3, Eighth Note = 160
Sonatine attique: III. Giocoso tres rythme
Clarinet Concerto No. 1 in F Minor, Op. 73, J. 114: III. Rondo. Allegretto
Bliss: Checkmate Suite, Quintet for Clarinet and Strings, Hymn to Apollo, Music for Strings & Lie Strewn the White Flocks
Clarinet Quintet in B Minor, Op. 115: I. Allegro
Brahms: Clarinet Quintet & Sonata for Clarinet and Piano
Clarinet Quintet in B Minor, Op. 115: II. Adagio