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 0x1e82d9d33089ae9e663df700a69d984589cb1f001f117fd5f198749a11404bc7. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8f6d307-f513-44cb-9475-a6d5cc98f2b7.json and https://artists.proofprofile.net/proofs/artist/a8f6d307-f513-44cb-9475-a6d5cc98f2b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concerto No. 2 in D Major for 2 Violins, H. 329: I. Poco allegro
Concerto No. 2 in D Major for 2 Violins, H. 329: II. Moderato - Allegro con brio - Vivo
Rhapsody-Concerto for Viola and Orchestra H. 337: I. Moderato
Rhapsody-Concerto for Viola and Orchestra H. 337: II. Molto adagio - Allegro - Andante
Concerto for 2 pianos H. 292: I. Allegro non troppo
Concerto for 2 pianos H. 292: II. Adagio
Concerto for 2 pianos H. 292: III. Allegro
Serenade in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
Violin Concerto No. 3 in G Major, K. 216: II. Adagio
Divertimento in E-Flat Major, K. 563: I. Allegro
Symphony No. 5 in B-Flat Major, K. 22: II. Andante
Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto
Violin Concerto No. 5 in A Major, K. 219 "Turkish": III. Rondeau. Tempo di Menuetto
Oboe Quartet in F Major, K. 370: I. Allegro
Divertimento in E-Flat Major, K. 563: III. Menuetto. Allegretto
Die Entführung aus dem Serail, K. 384 "The Abduction from the Seraglio" (Arr. Bastiaan Blomhert for Chamber Ensemble): VIII. Martern aller Arten
Flute Concerto No. 2 in D Major, K. 314: III. Rondo. Allegretto
Preludes and Fugues, K. 404a: VI. Fugue XIII, WTC
Clarinet Quintet in A Major, K. 581: II. Larghetto
Bassoon Concerto in B-Flat Major, K. 191/186c: I. Allegro
Serenade in D Major, K. 250 "Haffner Serenade": IV. Rondo. Allegro
Flute Quartet in G Major, K. 285a: I. Andante
Violin Concerto No. 4 in D Major, K. 218: II. Andante cantabile
Die Entführung aus dem Serail, K. 384 "The Abduction from the Seraglio": Wer ein Liebchen hat gefunden
Flute Quartet in C Major, K. Anh. 171: I. Allegro
Divertimento in E-Flat Major, K. 563: VI. Allegro
Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso
Piano Concerto No. 24 in C Minor, K. 491: III. Allegretto
Mass in C Minor, K. 427 "Great" (Reconstr. H. Eder): I. Kyrie
Adagio in E Major for Violin and Orchestra, K. 261
Piano Sonata No. 10 in C Major, K. 330: III. Allegretto
Clarinet Concerto in A Major, K. 622 (Version for Basset Clarinet): II. Adagio
Rondo in C Major for Violin and Orchestra, K. 373
Violin Sonata No. 21 in E Minor, K. 304 (Arr. Ana de la Vega for Flute & Piano): I. Allegro
Violin Concerto No. 1 in B-Flat Major, K. 207: I. Allegro Moderato
Violin Sonata No. 21 in E Minor, K. 304 (Arr. Ana de la Vega for Flute & Piano): II. Tempo di minuetto
Violin Concerto No. 2 in D Major, K. 211: III. Rondeau. Allegro
Symphony No. 38 in D Major, K. 504 "Prague": III. Finale. Presto
Symphony No. 39 in E-Flat Major, K. 543: II. Andante con moto
Il mito dell'opera: Flaviano Labò & Magda Olivero
Mefistofele, Act III: The Death of Margherita: Spunta l'aurora pallida
Adriana Lecouvreur, Act IV: Poveri fiori
La Wally, Act I: Ebben? Ne andro lontana
Manon Lescaut, Act II: In quelle trine morbide
L' Africaine (The African Maid), Act IV: O paradiso (Sung in Italian)
La forza del destino, Act III: O tu che in seno agli angeli
Adriana Lecouvreur, Act I: Io son l'umile ancella
Tosca: Act I: Mario! Mario! - Son qui - La vita mi costasse
Tosca: Act II: Floria! - Vittoria! Vittoria!
Werther, Act III: No, non mi ridestar (Sung in Italian)
Faust, CG 4 (Excerpts): Le veau d'or est toujours debout
Faust, CG 4 (Excerpts): Vous qui faites l'endormie
Mefistofele (Excerpts): Son lo Spirito che nega
6 Songs, Op. 75: No. 3, Aus Goethes Faust (Arr. D. Shostakovich for Voice & Orchestra)
Fidelio, Op. 72: Ha! Welch ein Augenblick!
Die Entführung aus dem Serail, K. 384 (Excerpts): Wer ein Liebchen hat gefunden
Die Entführung aus dem Serail, K. 384 (Excerpts): O, wie will ich triumphieren
Der Freischütz, J. 277: Schweig! Damit dich niemand warnt
Les contes d'Hoffmann (Excerpts): Prologue. Dans les rôles d'amoureux langoureux
Les contes d'Hoffmann (Excerpts): Scintille, diamant
I Lombardi alla prima crociata: Sciagurata!
La damnation de Faust, Op. 24, H. 111 (Excerpts): Voici des roses
La damnation de Faust, Op. 24, H. 111 (Excerpts): Devant la maison "Serenade of Mephistopheles"
Mephistopheles to Faust (Version for Voice & Orchestra)
Mephistopheles's Song in Auerbach's Cellar "Song of the Flea" (Arr. I. Stravinsky for Voice & Orchestra)
The Rake's Progress: I Burn, I Burn! I Freeze!
Robert le diable: Voici donc les débris du monastère antique
Das Rheingold, WWV 86A: Bin ich nun frei "Alberich's Curse"
8 Poems of Emily Dickinson: No. 1, Nature, the Gentlest Mother
8 Poems of Emily Dickinson: No. 2, There Came a Wind like a Bugle
8 Poems of Emily Dickinson: No. 3, The World Feels Dusty
8 Poems of Emily Dickinson: No. 4, Heart, We Will Forget Him
8 Poems of Emily Dickinson: No. 5, Dear March, Come In!
8 Poems of Emily Dickinson: No. 6, Sleep Is Supposed to Be
8 Poems of Emily Dickinson: No. 7, Going to Heaven!
8 Poems of Emily Dickinson: No. 8, The Chariot
Newer Every Day (Arr. for Voice & Orchestra): No. 1, Silence
Newer Every Day (Arr. for Voice & Orchestra): No. 2, I'm Nobody! Who Are You?
Newer Every Day (Arr. for Voice & Orchestra): No. 3, Fame
Newer Every Day (Arr. for Voice & Orchestra): No. 4, That I Did Always Love
Newer Every Day (Arr. for Voice & Orchestra): No. 5, Goodnight
4 Dickinson Songs (Version for Voice & Orchestra): No. 1, Safe in Their Alabaster Chambers
4 Dickinson Songs (Version for Voice & Orchestra): No. 2, A Bird Came down the Walk
4 Dickinson Songs (Version for Voice & Orchestra): No. 3, There's a Certain Slant of Light
4 Dickinson Songs (Version for Voice & Orchestra): No. 4, Because I Could Not Stop for Death
Poems of Emily Dickinson (Excerpts): Down Time's Quaint Stream
Poems of Emily Dickinson (Excerpts): The Bible
Poems of Emily Dickinson (Excerpts): Fame
Poems of Emily Dickinson (Excerpts): The Earth Has Many Keys
Poems of Emily Dickinson (Excerpts): Take All Away from Me
Tomasi: Requiem Pour La Paix / Fanfares Liturgiques
Provence-Alpes-Cote d'Azur Regional Choir
Fanfares liturgiques: Procession Nocturne
Mefistofele, Act III: Spunta l'aurora pallida
La Wally, Act I: Ebben? Ne andrò lontana