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 0x30a1213516af3d0e1660d21d9907b72186b541a977af9222cf168966d9c446d5. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b9bc9cb-779f-452b-b57f-61354aadf05c.json and https://artists.proofprofile.net/proofs/artist/1b9bc9cb-779f-452b-b57f-61354aadf05c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zarebski: Grande Polonaise / Les Roses Et Les Epines / Etrennes (Excerpts) / Berceuse / Tarantelle
Grande Polonaise in F-Sharp Major, Op. 6
Les roses et les epines, Op. 13: I. Andante con moto
Les roses et les epines, Op. 13: II. Presto con fuoco
Les roses et les epines, Op. 13: III. Andante con moto
Les roses et les epines, Op. 13: IV. Allegro molto (quasi Presto)
Les roses et les epines, Op. 13: V. Allegro moderato
Etrennes, Op. 27: No. 6. Valse in A Major
Etrennes, Op. 27: No. 6, Valse in A Major
Les roses et les épines, Op. 13: I. Andante con moto
3 Danses galiciennes, Op. 2: No. 1, Allegretto con moto
Les roses et les épines, Op. 13: II. Presto con fuoco
3 Danses galiciennes, Op. 2: No. 2, Maestoso, non troppo allegro
3 Danses galiciennes, Op. 2: No. 3, Allegro molto
Grande polonaise in F-Sharp Major, Op. 6
Les roses et les épines, Op. 13: III. Andante con moto
4 Mazurkas, Op. 4: No. 1, Allegro animato
Les roses et les épines, Op. 13: IV. Allegro molto quasi presto
3 Études de concert, Op. 7: II. Presto agitato
Les roses et les épines, Op. 13: V. Allegro moderato
4 Mazurkas, Op. 4: No. 2, Un poco meno allegro
4 Mazurkas, Op. 4: No. 3, Allegro moderato
3 Études de concert, Op. 7: III. Prestissimo
Mazurka de concert No. 2 in G-Sharp Minor, Op. 15
4 Mazurkas, Op. 4: No. 4, Allegro vivace
2 Morceaux de mazurka, Op. 5: No. 1, Rêverie
2 Morceaux de mazurka, Op. 5: No. 2, Passion
Divertissement à la polonaise, Op. 12: I. Andante
Suite polonaise, Op. 16: IV. Cracovienne
Divertissement à la polonaise, Op. 12: II. Allegro ma non troppo
À travers Pologne, Op. 23: I. Chant du depart
À travers Pologne, Op. 23: II. Le mal du pays
À travers Pologne, Op. 23: IV. Cracovienne
À travers Pologne, Op. 23: VI. Cracovienne
Les roses et les epines, Op. 13: IV. Allegro molto quasi presto
5つの即興曲 バラと棘, 作品 13: 4. Allegro molto (Quasi Presto)
5つの即興曲 バラと棘, 作品 13: 5. Allegretto moderato
Juliusz Zarębski: Complete Works Vol. 5, Works without Opus Numbers
Grande fantaisie, JZBO 11 (1876): Grande fantaisie, JZBO 11
A Piece without Title in F sharp minor, JZBO 14
The Newly Blossomed Trees, JZBO 2: The Newly Blossomed Trees, JZBO 2
Andante ma non troppo, JZBO 1: Andante ma non troppo, JZBO 1
Romance sans paroles, JZBO 5: Romance sans paroles, JZBO 5
Overture to the opera ‘Maria’ after Malczewski for piano four hands, JZBO 7: Overture to the opera ‘Maria’ after Malczewski for piano four hands, JZBO 7
Juliusz Zarębski - Piano Quintet in G Minor, Op. 34 (Period Instruments)
Piano Quintet in G Minor, Op. 34: I. Allegro.
Piano Quintet in G Minor, Op. 34: II. Adagio.
Piano Quintet in G Minor, Op. 34: III. Scherzo.
Piano Quintet in G Minor, Op. 34: IV. Finale.
Juliusz Zarębski: Lullaby (Kołysanka), Op. 22
Piano Quintet in G Minor, Op. 34: 1. 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 0xc70d2619ab4dc10ef03473ba796f3b0516335f5650f66f323f0a075c903b27e4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAVQ1900291.
Piano Quintet in G Minor, Op. 34: 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a442bb60276a118576613b4b608743b10abbc199dbfef4f205c98ff141bd5a2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAVQ1900292.
Piano Quintet in G Minor, Op. 34: 3. Scherzo - Presto
Piano Quintet in G Minor, Op. 34: 4. Finale - Presto
Quintet for Piano and String Quartet in G minor, Op. 34: Allegro
Quintet for Piano and String Quartet in G minor, Op. 34: Adagio
Quintet for Piano and String Quartet in G minor, Op. 34: Scherzo
Quintet for Piano and String Quartet in G minor, Op. 34: Finale
Les roses et les épines, Op. 13: II. Presto
3rd International Competition of Polish Music
Juliusz Zarębski. Polonaise mélancolique e-moll op. 10
Piano Quintet in G Minor, Op. 34: II. Adagio
A Polish Kaleidoscope: Piano Works for 4 Hands
小さなピアニストのためのポーランド小品集