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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bf757fc03b031d05c06ba7b70314f5f71e5545bc337403aed236a7f576d24c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c9be809-62bd-44dd-9560-8f918715cbda.json and https://artists.proofprofile.net/proofs/artist/8c9be809-62bd-44dd-9560-8f918715cbda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brass Quintet No. 1, Op. 5: II. Adagio - Allegro - Adagio
Brass Quintet No. 1, Op. 5: III. Allegro moderato
Brass Quintet No. 2, Op. 6: I. Allegro risoluto
Brass Quintet No. 2, Op. 6: II. Tema con variazioni
Brass Quintet No. 2, Op. 6: III. Allegro vivace
Brass Quintet No. 3, Op. 7: I. Allegro moderato
Brass Quintet No. 3, Op. 7: II. Intermezzo
Brass Quintet No. 3, Op. 7: III. Andante
Brass Quintet No. 4, Op. 8: I. Allegro commodo
Brass Quintet No. 4, Op. 8: III. Andantino
Brass Quintet No. 4, Op. 8: IV. Allegro con brio
Ewald: Musique de Chambre à Saint-Pétersbourg
Quintette pour cuivres, Op. 6 No. 2: I. Allegro risoluto
Quintette pour cuivres, Op. 6 No. 2: II. Thema con Variazioni
Quintette pour cuivres, Op. 6 No. 2: III. Allegro vivace
Quintette pour cuivres No. 3: I. Allegro moderato
Quintette pour cuivres No. 3: II. Intermezzo, moderato
Quintette pour cuivres No. 3: III. Andante
Symphonie pour cuivres, Op. 5: I. Moderato
Symphonie pour cuivres, Op. 5: II. Adagio non troppo lento, allegro vivace, adagio
Symphonie pour cuivres, Op. 5: III. Allegro moderato
Quintet No. 4 in A-Flat Major, Op. 8: I. Allegro commodo
Quintet No. 4 in A-Flat Major, Op. 8: II. Allegro
Quintet No. 4 in A-Flat Major, Op. 8: III. Andantino
Quintet No. 4 in A-Flat Major, Op. 8: IV. Allegro con brio
Quintet No. 3 in D-Flat Major, Op. 7: I. Allegro moderato
Quintet No. 3 in D-Flat Major, Op. 7: II. Intermezzo
Quintet No. 3 in D-Flat Major, Op. 7: III. Andante
Quintet No. 3 in D-Flat Major, Op. 7: IV. Vivo
Quintet No. 2 in E-Flat Major, Op. 6: I. Allegro risoluto
Quintet No. 2 in E-Flat Major, Op. 6: II. Tema con variozioni
Quintet No. 2 in E-Flat Major, Op. 6: III. Allegro vivace
Quintet No. 1 in B-Flat Major, Op. 5: I. Moderato
Quintet No. 1 in B-Flat Major, Op. 5: II. Adagio - Allegro - Adagio
Quintet No. 1 in B-Flat Major, Op. 5: III. Allegro moderato
Brass Quintet No. 1, Op. 5: II. Adagio non troppo lento
Brass Quintet No. 1, Op. 5: III. Allegro
Ewald: Brass Quintet No. 2: I. Allegro risoluto: I
Ewald: Brass Quintet No. 2: I. Allegro risoluto: II
Ewald: Brass Quintet No. 2: I. Allegro risoluto: III
Ewald: Brass Quintet No. 2: I. Allegro risoluto: IV
Ewald: Brass Quintet No. 2: II. Thema con variazioni: I
Ewald: Brass Quintet No. 2: II. Thema con variazioni: II
Ewald: Brass Quintet No. 2: II. Thema con variazioni: III
Ewald: Brass Quintet No. 2: II. Thema con variazioni: IV
Ewald: Brass Quintet No. 2: II. Thema con variazioni: V
Ewald: Brass Quintet No. 2: II. Thema con variazioni: VI
Ewald: Brass Quintet No. 2: III. Allegro vivace: I
Ewald: Brass Quintet No. 2: III. Allegro vivace: II
Ewald: Brass Quintet No. 2: III. Allegro vivace: III
Ewald: Brass Quintet No. 2: III. Allegro vivace: IV
Quintet No. 1 in Bb Minor, Op. 5: 1. Moderato
Quintet No. 1 in Bb Minor, Op. 5: 2. Adagio Non Troppo Lento
Quintet No. 1 in Bb Minor, Op. 5: 3. Allegro Moderato
Quintet No. 2 in Eb Major, Op. 6: 1. Allegro Risoluto
Quintet No. 2 in Eb Major, Op. 6: 2. Thema Con Variationi
Quintet No. 2 in Eb Major, Op. 6: 3. Allegro Vivace
Quintet No. 3 in D Flat Major, Op. 7: 1. Allegretto Moderato
Quintet No. 3 in D Flat Major, Op. 7: 2. Moderato
Quintet No. 3 in D Flat Major, Op. 7: 3. Andante
Quintet No. 3 in D Flat Major, Op. 7: 4. Vivo
Quintet No. 4 in A Flat Major, Op. 8: 1. Allegro Commodo
Quintet No. 4 in A Flat Major, Op. 8: 2. Allegro
Quintet No. 4 in A Flat Major, Op. 8: 3. Andantino
Quintet No. 4 in A Flat Major, Op. 8: 4. Allegro con brio
Victor Ewald: Quintet No 3 for Brass Quintet
Ewald: Quintet No.3 for brass quintet - I. Allegro moderato I
Ewald: Quintet No.3 for brass quintet - I. Allegro moderato II
Ewald: Quintet No.3 for brass quintet - I. Allegro moderato III
Ewald: Quintet No.3 for brass quintet - I. Allegro moderato IV
Ewald: Quintet No.3 for brass quintet - II. Intermezzo. Moderato I
Ewald: Quintet No.3 for brass quintet - II. Intermezzo. Moderato II
Ewald: Quintet No.3 for brass quintet - III. Andante I
Ewald: Quintet No.3 for brass quintet - III. Andante II
Ewald: Quintet No.3 for brass quintet - IV. Vivo I
Ewald: Quintet No.3 for brass quintet - IV. Vivo II
Ewald: Quintet No.3 for brass quintet - IV. Vivo III
Quintet No. 1 in B-Flat Minor: II. Adagio - Allegro vivace - Adagio
Arnold, Ewald, Bozza, Maurer, Dahl & Clavert: Works for Brass Ensemble
Quintet No. 1 in B-Flat Minor: III. Allegro moderato
Quintet No. 1 in B-Flat Minor: I. Moderato
Quintet No. 3 in D-Flat Major, Op. 11: I. Allegro moderato
Quintet No. 3 in D-Flat Major, Op. 11: II. Intermezzo
Quintet No. 3 in D-Flat Major, Op. 11: III. Andante
Quintet No. 3 in D-Flat Major, Op. 11: IV. Vivo
Quintet for Two Cornets, Horn, Trombone and Tuba, Op. 5: I. Moderato
Quintet for Two Cornets, Horn, Trombone and Tuba, Op. 5: II. Adagio non troppo lento
Quintet for Two Cornets, Horn, Trombone and Tuba, Op. 5: III. Allegro moderato