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 0xf0840169cf5696ef66056a3dc5159cce48e92afd621503d3107ebebb7e5ec63e. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abb0396a-2b7f-4e4c-928e-c4a960730ac6.json and https://artists.proofprofile.net/proofs/artist/abb0396a-2b7f-4e4c-928e-c4a960730ac6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach, J.S.: Violin Partita No. 2 / Biber, H.I.F. Von: Violin Sonata / Corelli, A.: Violin Sonata, Op. 5, No. 12
Bizzarie All'Imor Scozzeze: Ground after the Scotch Humour
Ground in D Major, "la sol re per far la mano"
Violin Sonata, "Representative Sonata": I. Allegro
Violin Sonata, "Representative Sonata": II. Die Nachtigall (The Nightingale) - Cucu - Der Frosch (The Frog) - Adagio - Der Hahn - Die Wachtel (The Quail) - Die Katz (The Cat)
Violin Sonata, "Representative Sonata": X. Musketier - Marsch (March of the Musketeers)
Violin Sonata, "Representative Sonata": XI. Allemande
Sonata in D Minor, No. 12, "Folia": Violin Sonata in D Minor, Op. 5, No. 12, "La folia"
Violin Partita No. 2 in D Minor, BWV 1004: I. Allemande
Violin Partita No. 2 in D Minor, BWV 1004: II. Courante
Violin Partita No. 2 in D Minor, BWV 1004: III. Sarabande
Violin Partita No. 2 in D Minor, BWV 1004: IV. Gigue
Violin Partita No. 2 in D Minor, BWV 1004: V. Ciaccona
Violin Sonata, "Representative Sonata": II. Die Nachtigall (the Nightingale) - Cucu - Der Frosch [the Frog] - Adagio - Der Hahn - Die Wachtel [the Quail] - Die Katz [the Cat]
Violin Sonata in B-Flat Major, Op. 12 No. 2: Violin Sonata in D Minor, Op. 5, No. 12, "La folia"
Lutoslawski, W.: Violin Music (Complete) / Szymanowski, K.: Myths / Janacek, L: Violin Sonata
Mythes, Op. 30: No. 1, The Fountain of Arethusa
Violin Sonata, JW VII/7: II. Ballada: Con moto
Violin Sonata, JW VII/7: III. Allegretto
Myths, Op. 30: No. 1. The Fountain of Arethusa
Violin Concerto in E Major, D. 50: I. Allegro
A Guided Tour of the Baroque Era, Vol. 8
Violin Concerto in A Major, D. 96: II. Adagio
Violin Concerto in B Minor, D. 125, "Lascia ch'io dica addio": II. Larghetto
Violin Concerto in D Major, D. 28: III. [Allegro]
Violin Sonata No. 2 in A Major, Op. 78: I. Rasch, mit Warme un Bewegung
Violin Sonata No. 2 in A Major, Op. 78: II. Nicht zu langsam
Violin Sonata No. 2 in A Major, Op. 78: III. In raschem Zeitmass, doch nicht zu bewegt
Violin Sonata No. 2 in A Major, Op. 78: IV. Rasch un feurig
Violin Sonata No. 5 in C Minor, Op. 145: I. Allegro patetico
Violin Sonata No. 5 in C Minor, Op. 145: II. Andante
Violin Sonata No. 5 in C Minor, Op. 145: III. Presto
Violin Sonata No. 5 in C Minor, Op. 145: IV. Allegro agitato
Violin Sonata in F Major, Op. 8 No. 1: I. Allegro ma non troppo
Violin Sonata in F Major, Op. 8 No. 1: II. Allegretto vivace
Violin Sonata in F Major, Op. 8 No. 1: III. Larghetto
Violin Sonata in F Major, Op. 8 No. 1: IV. Rondo. Allegretto quasi allegro
Violin Sonata in C-Sharp Minor, Op. 71: I. Allegro con brio
Violin Sonata in C-Sharp Minor, Op. 71: II. Adagio
Violin Sonata in C-Sharp Minor, Op. 71: III. Allegro agitato
Violin Sonata in B-Flat Major, Op. 16 No. 2: I. Allegro