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 0x34b495a577ff81dfe92a72cc5edc6e15bf88eb563a3ced6f524b3f5625efef18. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e96435d-f1ae-4f9b-842b-a384a47da75a.json and https://artists.proofprofile.net/proofs/artist/8e96435d-f1ae-4f9b-842b-a384a47da75a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mascitti: Sonate a violino solo e basso, Opera Nona
Sonata for Violin and Continuo in A Major, Op. 9 No. 1: I. Larghetto
Sonata for Violin and Continuo in A Major, Op. 9 No. 1: II. Allegro
Sonata for Violin and Continuo in A Major, Op. 9 No. 1: III. Sarabanta (Largo)
Sonata for Violin and Continuo in A Major, Op. 9 No. 1: IV. Allegro moderato
Sonata for Violin and Continuo in G Minor, Op. 9 No. 2: I. Larghetto
Sonata for Violin and Continuo in G Minor, Op. 9 No. 2: II. Allemanda (Allegro)
Sonata for Violin and Continuo in G Minor, Op. 9 No. 2: III. Largo
Sonata for Violin and Continuo in G Minor, Op. 9 No. 2: IV. Allegro
Sonata for Violin and Continuo in F Major, Op. 9 No. 3: I. Vivace
Sonata for Violin and Continuo in F Major, Op. 9 No. 3: II. Adagio
Sonata for Violin and Continuo in F Major, Op. 9 No. 3: III. Allegro moderato
Sonata for Violin and Continuo in F Major, Op. 9 No. 3: IV. Larghetto et affettuoso
Sonata for Violin and Continuo in F Major, Op. 9 No. 3: V. Allegro
Sonata for Violin and Continuo in D Minor, Op. 9 No. 5: I. Un poco andante
Sonata for Violin and Continuo in D Minor, Op. 9 No. 5: II. Allemanda (Allegro)
Sonata for Violin and Continuo in D Minor, Op. 9 No. 5: III. Adagio
Sonata for Violin and Continuo in D Minor, Op. 9 No. 5: IV. Allegro
Sonata for Violin and Continuo in A Minor, Op. 9 No. 6: I. Andante
Sonata for Violin and Continuo in A Minor, Op. 9 No. 6: II. Allegro
Sonata for Violin and Continuo in A Minor, Op. 9 No. 6: III. Largo et affettuoso
Sonata for Violin and Continuo in A Minor, Op. 9 No. 6: IV. Allegro moderato
Sonata for Violin and Continuo in D Major, Op. 9 No. 7: I. Vivace
Sonata for Violin and Continuo in D Major, Op. 9 No. 7: II. Largo
Sonata for Violin and Continuo in D Major, Op. 9 No. 7: III. Allegro
Sonata for Violin and Continuo in D Major, Op. 9 No. 7: IV. Largo
Sonata for Violin and Continuo in D Major, Op. 9 No. 7: V. Allegro
Sonata for Violin and Continuo in B-Flat Major, Op. 9 No. 9: I. Un poco andante
Sonata for Violin and Continuo in B-Flat Major, Op. 9 No. 9: II. Allegro
Sonata for Violin and Continuo in B-Flat Major, Op. 9 No. 9: III. Largo
Sonata for Violin and Continuo in B-Flat Major, Op. 9 No. 9: IV. Allegro
Sonata for Violin and Continuo in C Minor, Op. 9 No. 12: I. Adagio
Sonata for Violin and Continuo in C Minor, Op. 9 No. 12: II. Allegro
Sonata for Violin and Continuo in C Minor, Op. 9 No. 12: III. Adagio
Sonata for Violin and Continuo in C Minor, Op. 9 No. 12: IV. Allegro
Mascitti: Sonate a violino solo e basso, opera ottava
Sonata No. 1 in A Major, Op. 8: I. Adagio
Sonata No. 1 in A Major, Op. 8: II. Allegro
Sonata No. 1 in A Major, Op. 8: III. Largo
Sonata No. 1 in A Major, Op. 8: IV. Allegro
Sonata No. 2 in B-Flat Major, Op. 8: I. Larghetto
Sonata No. 2 in B-Flat Major, Op. 8: II. Allegro
Sonata No. 2 in B-Flat Major, Op. 8: III. Sarabanda (Larghetto)
Sonata No. 2 in B-Flat Major, Op. 8: IV. Allegro
Sonata No. 2 in B-Flat Major, Op. 8: V. Minuetto (Allegro)
Sonata No. 5 in G Minor, Op. 8: I. Andante
Sonata No. 5 in G Minor, Op. 8: II. Allegro
Sonata No. 5 in G Minor, Op. 8: III. Largo
Sonata No. 5 in G Minor, Op. 8: IV. Corrente (Allegro)
Sonata No. 5 in G Minor, Op. 8: V. Gavotta (Allegro)
Sonata No. 6 in A Major, Op. 8: I. Larghetto
Sonata No. 6 in A Major, Op. 8: II. Allegro
Sonata No. 6 in A Major, Op. 8: III. Pastorale ou musette (Andante)
Sonata No. 6 in A Major, Op. 8: IV. Allegro
Sonata No. 7 in F Major, Op. 8: I. Allemanda (Andante)
Sonata No. 7 in F Major, Op. 8: II. Allemanda (Allegro)
Sonata No. 7 in F Major, Op. 8: III. Allegro
Sonata No. 7 in F Major, Op. 8: IV. Larghetto e piano sempre
Sonata No. 8 in D Major, Op. 8: I. Allegro ma non presto
Sonata No. 8 in D Major, Op. 8: II. Sarabanda (Largo et affettuoso)
Sonata No. 8 in D Major, Op. 8: III. Corrente (Allegro)
Sonata No. 8 in D Major, Op. 8: IV. Allegro
Sonata No. 10 in G Major, Op. 8: I. Allegro moderato
Sonata No. 10 in G Major, Op. 8: II. Corrente (Allegro ma non presto)
Sonata No. 10 in G Major, Op. 8: III. Largo et affettuoso
Sonata No. 10 in G Major, Op. 8: IV. Allegro
Sonata No. 11 in A Minor, Op. 8: I. Allegro moderato
Sonata No. 11 in A Minor, Op. 8: II. Allemanda (Allegro)
Sonata No. 11 in A Minor, Op. 8: III. Larghetto
Sonata No. 11 in A Minor, Op. 8: IV. Allegro