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 0x2afcb2358d74eb398919153aa6e884448d99a2c79924123f017098a911e9a704. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5e8d6f4-3e49-4a65-a35d-484398b80e00.json and https://artists.proofprofile.net/proofs/artist/d5e8d6f4-3e49-4a65-a35d-484398b80e00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonata in D Major, Hob. XVI:37: I. Allegro con brio
Sonata in D Major, Hob. XVI:37: II. Largo e sostenuto
Sonata in D Major, Hob. XVI:37: III. Finale. Presto ma non troppo
Partita in G Major, Hob. XVI:6: I. Allegro
Partita in G Major, Hob. XVI:6: II. Menuetto
Partita in G Major, Hob. XVI:6: III. Adagio
Partita in G Major, Hob. XVI:6: IV. Allegro molto
Divertimento in C Major, Hob. XVI:10: I. Moderato
Divertimento in C Major, Hob. XVI:10: II. Menuet
Divertimento in C Major, Hob. XVI:10: III. Finale. Presto
Sonata in F Major, Hob. XVI:23: I. (Allegro moderato)
Sonata in F Major, Hob. XVI:23: II. Adagio
Sonata in F Major, Hob. XVI:23: III. Finale. Presto
Sonata in D Major, Hob. XVI:24: I. Allegro
Sonata in D Major, Hob. XVI:24: II. Adagio
Sonata in D Major, Hob. XVI:24: III. Finale. Presto
Sonata in D Major, Hob. XVl:37: Sonata in D Major, Hob. XVI:37: I. Allegro con brio
Sonata in D Major, Hob. XVl:37: Sonata in D Major, Hob. XVI:37: II. Largo e sostenuto
Sonata in D Major, Hob. XVl:37: Sonata in D Major, Hob. XVI:37: III. Finale. Presto ma non troppo
Partita in G Major, Hob. XVl:6: Partita in G Major, Hob. XVI:6: I. Allegro
Partita in G Major, Hob. XVl:6: Partita in G Major, Hob. XVI:6: II. Menuetto
Partita in G Major, Hob. XVl:6: Partita in G Major, Hob. XVI:6: III. Adagio
Partita in G Major, Hob. XVl:6: Partita in G Major, Hob. XVI:6: IV. Allegro molto
Divertimento in C Major, Hob. XVl:10: Divertimento in C Major, Hob. XVI:10: I. Moderato
Divertimento in C Major, Hob. XVl:10: Divertimento in C Major, Hob. XVI:10: II. Menuet
Divertimento in C Major, Hob. XVl:10: Divertimento in C Major, Hob. XVI:10: III. Finale. Presto
Sonata in F Major, Hob. XVl:23: Sonata in F Major, Hob. XVI:23: I. (Allegro moderato)
Sonata in F Major, Hob. XVl:23: Sonata in F Major, Hob. XVI:23: II. Adagio
Sonata in F Major, Hob. XVl:23: Sonata in F Major, Hob. XVI:23: III. Finale. Presto
Sonata in D Major, Hob. XVl:24: Sonata in D Major, Hob. XVI:24: I. Allegro
Sonata in D Major, Hob. XVl:24: Sonata in D Major, Hob. XVI:24: II. Adagio
Sonata in D Major, Hob. XVl:24: Sonata in D Major, Hob. XVI:24: III. Finale. Presto
Keyboard Sonata No. 50 in D Major, Op. 30 No. 3, Hob. XVI:37: I. Allegro con brio
Keyboard Sonata No. 50 in D Major, Op. 30 No. 3, Hob. XVI:37: II. Largo e sostenuto
Keyboard Sonata No. 50 in D Major, Op. 30 No. 3, Hob. XVI:37: III. Finale. Presto ma non troppo
Keyboard Sonata No. 13 in G Major, Hob. XVI:6: I. Allegro
Keyboard Sonata No. 13 in G Major, Hob. XVI:6: II. Menuetto
Keyboard Sonata No. 13 in G Major, Hob. XVI:6: III. Adagio
Keyboard Sonata No. 13 in G Major, Hob. XVI:6: IV. Finale. Allegro molto
Keyboard Sonata No. 6 in C Major, Hob. XVI:10: I. Moderato
Keyboard Sonata No. 6 in C Major, Hob. XVI:10: II. Menuet - Trio
Keyboard Sonata No. 6 in C Major, Hob. XVI:10: III. Finale. Presto
Keyboard Sonata No. 38 in F Major, Op. 13 No. 3, Hob. XVI:23: I. Allegro
Keyboard Sonata No. 38 in F Major, Op. 13 No. 3, Hob. XVI:23: II. Adagio
Keyboard Sonata No. 38 in F Major, Op. 13 No. 3, Hob. XVI:23: III. Finale. Presto
Keyboard Sonata No. 39 in D Major, Op. 13 No. 4, Hob. XVI:24: I. Allegro
Keyboard Sonata No. 39 in D Major, Op. 13 No. 4, Hob. XVI:24: II. Adagio
Keyboard Sonata No. 39 in D Major, Op. 13 No. 4, Hob. XVI:24: III. Finale. Presto
Keyboard Sonata in B-Flat Minor, Kk. 128
Piano Sonata No. 1 in F Minor, Op. 2 No. 1: I. Allegro
Piano Sonata No. 1 in F Minor, Op. 2 No. 1: II. Adagio
Piano Sonata No. 1 in F Minor, Op. 2 No. 1: III. Minuet. Allegretto
Piano Sonata No. 1 in F Minor, Op. 2 No. 1: IV. Prestissimo
Keyboard Sonata in B Minor, Hob. XVI:32: I. Allegro moderato
Keyboard Sonata in B Minor, Hob. XVI:32: II. Minuet - Trio
Keyboard Sonata in B Minor, Hob. XVI:32: III. Finale. Presto
Piano Sonata No. 2 in A Major, Op. 2 No. 2: I. Allegro vivace
Piano Sonata No. 2 in A Major, Op. 2 No. 2: II. Largo appassionato
Piano Sonata No. 2 in A Major, Op. 2 No. 2: III. Scherzo. Allegretto
Piano Sonata No. 2 in A Major, Op. 2 No. 2: IV. Rondo. Grazioso
Keyboard Sonata in C Major, Hob. XVI:48: I. Andante con espressione
Keyboard Sonata in C Major, Hob. XVI:48: II. Rondo. Presto
Piano Sonata No. 6 in F Major, Op. 10 No. 2: I. Allegro
Piano Sonata No. 6 in F Major, Op. 10 No. 2: II. Allegretto
Piano Sonata No. 6 in F Major, Op. 10 No. 2: III. Presto
Piano Sonata No. 1 in F Minor, Op. 2 No. 1: III. Menuetto. Allegretto
Piano Sonata No. 2 in A Major, Op. 2 No. 2: III. Scherzo (Allegretto)
Piano Sonata No. 2 in A Major, Op. 2 No. 2: IV. Rondo (Grazioso)
Keyboard Sonata in C Major, Hob. XVI:49: II. Rondo. Presto
Piano Sonata No. 2 in A Major, Op. 2 No. 2: III. Scherzo: Allegretto
Piano Sonata No. 2 in A Major, Op. 2 No. 2: IV. Rondo: Grazioso
Concerto in D Minor, BWV 974 (After Marcello's Oboe Concerto in D minor, S.Z799): Concerto in D Minor, BWV 974 (After Marcello's Oboe Concerto in D minor, S.Z799): I. Allegro
Concerto in D Minor, BWV 974 (After Marcello's Oboe Concerto in D minor, S.Z799): Concerto in D Minor, BWV 974 (After Marcello's Oboe Concerto in D minor, S.Z799): II. Adagio
Piano Concerto No. 13 in C Major, K. 415/387B: I. Allegro
Mozart: Piano Concertos K. 415, 175 & 503
Piano Concerto No. 13 in C Major, K. 415/387B: II. Andante
Piano Concerto No. 13 in C Major, K. 415/387B: III. Rondeau. Allegro
Piano Concerto No. 5 in D Major, K. 175: I. Allegro
Piano Concerto No. 5 in D Major, K. 175: II. Andante ma un poco adagio
Piano Concerto No. 5 in D Major, K. 175: III. Allegro
Piano Concerto No. 25 in C Major, K. 503: I. Allegro maestoso
Piano Concerto No. 25 in C Major, K. 503: II. Andante
Piano Concerto No. 25 in C Major, K. 503: III. Allegretto
Chill with Classical Music (Enjoy the Coolest Melodies of Classical Music)
Piano concerto No. 1 in C Major, Op. 15: I. Allegro con brio
Piano concerto No. 1 in C Major, Op. 15: II. Largo
Piano concerto No. 1 in C Major, Op. 15: III. Rondo. Allegro
Piano Concerto No.2 in B Flat-Major, Op. 19: I. Allegro con brio
Piano Concerto No.2 in B Flat-Major, Op. 19: II. Adagio
Piano Concerto No.2 in B Flat-Major, Op. 19: III. Rondo. Molto allegro