Herbert Kraus (2 January 1884 – 15 March 1965) was a German professor of public international law. He was the first director of the Institute of International Law at the University of Göttingen. Due t
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10699317c0443c5e9a4a5f879183411e6e8c096093011d3123fd4e723436f08. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/176cf358-89e4-4b38-a8ca-8e5fdf0ec684.json and https://artists.proofprofile.net/proofs/artist/176cf358-89e4-4b38-a8ca-8e5fdf0ec684.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
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The Marriage of Figaro, K. 492: Overture
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Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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The History of Classical Era Music (100 Famous Songs)
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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Piano Sonata No. 11 in A Major, K. 331: III. Rondo, "Alla turca"
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Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
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Masonic Funeral Music, K. 477: Maurerische Trauermusik (Masonic Funeral Music), K. 477
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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String Quartet No. 19 in C Major, K. 465, "Dissonance": I. Adagio - Allegro
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Piano Sonata No. 18 in D Major, K. 576: II. Adagio
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Ave Verum Corpus, K. 618: Ave verum corpus, K. 618
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Die Zauberflöte, K. 620: Act II: Der Holle Rache kocht in meinen Herzen
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Le nozze di Figaro (The Marriage of Figaro), K. 492, Act I: Aria: Non più andrai, farfallone amoroso
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Il rè pastore, K. 208: Il re pastore, K. 208, Act I: Aria: Aer tranquilo e disereni
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Mozart, W.A.: Flute Concertos Nos. 1 and 2 / Concerto for Flute and Harp
Concerto for Flute and Harp in C Major, K. 299: II. Andantino
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Mozart, W.A.: Piano Concertos Nos. 17 and 21
Klavierkonzert Nr. 21 C-Dur, K. 467, "Elvira Madigan": 2. Andante (Elvira Madigan): I. Allegro maestoso
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Klavierkonzert Nr. 21 C-Dur, K. 467, "Elvira Madigan": 2. Andante (Elvira Madigan): II. Andante
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Classic Moods - Albinoni, T.G. / Handel, G.F. / Marcello, A. / Vivaldi, A. / Bach, J.S. / Mozart, W.A. / Beethoven, L. Van / Haydn, F.J.
The 4 Seasons: Violin Concerto in F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): II. Adagio molto
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Mozart: Concertos for Clarinet, Oboe & Bassoon
Classic Masterworks - Wolfgang Amadeus Mozart
Piano Sonata No. 11 in A Major, K. 331: III. Alla turca: Allegretto
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Mozart, W.A.: Flute Concertos Nos. 1, 2 / Horn Concertos Nos. 1, 3
Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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The Four Seasons: Violin Concerto in E Major, Op. 8: No. 1, RV 269, "Spring": I. Allegro
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Humoresque in G-Flat Major, Op. 101: No. 7
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Piano Sonata No. 11 in A Major, K. 331 "Turkish March": III. Rondo Alla Turca (Allegretto)
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Moment Musical No. 3 in F Minor, Op. 94, D. 780
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Waltz No. 6 in D-Flat Major, Op. 64: No. 1 , "Minute Waltz"
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The Marriage of Figaro, K. 492: Cherubin's Song - "Voi Che Sapete" (Instrumental Version)
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Impromptu in A-Flat Major, Op. 90: No. 4, D. 899
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The Nutcracker, Op. 71, Act I: III. Children's March
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Norwegian Dance No. 2 in A Major, Op. 35: No. 6
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Piano Concerto No. 26 in D Major, K. 537, "Coronation": III. Allegretto
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Orchestral Suite No. 2 in B Minor, BWV 1067: VI. Menuet and Badinerie
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Music for the Royal Fireworks, HWV 351: V. Menuets I and II
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Song Without Words, Op. 67: No. 4 in C Major, "Spinning Song"
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Rondo a Capriccio in G Major, Op. 129, "Rage Over a Lost Penny“
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The Magic Flute, K. 620, Act II: Papageno‘s Aria (Instrumental Version)
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Water Music Suite No. 2 in D Major, HWV 349: II. Alla Hornpipe
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Mandolin Concerto in C Major, RV 425: I. Allegro
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Symphony No. 40 in G Minor, K. 550: I. Molto Allegro
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Lyric Pieces, Book 8, Op. 65: No. 6, "Wedding Day at Troldhaugen"
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Lyric Pieces, Book 3, Op. 43: No. 6, "To the Spring"
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Horn Concerto No. 2 in E-Flat Major, K. 417: III. Rondo - Allegro
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The Four Seasons: Violin Concerto in F Major, Op. 8: No. 3, RV 293, "Autumn": I. Allegro
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Solomon, HWV 67, Act III: Arrival of the Queen of Sheba
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Concerto for Violin, Strings and Continuo in E Major, BWV 1042: III. Allegro Assai
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Piano Sonata No. 16 in C Major, K. 545, "Sonata Facile": I. Allegro
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Carmen Suite No. 2, Act II: VI. Danse Boheme
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Swan Lake, Op. 20, Act II: Scene No. 10, Moderato
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Waltz No. 1 in E-Flat Major, Op. 18, "Grande Valse Brillante"
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Scenes from Childhood, Op. 15: VII. Träumerei (Dreaming)
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Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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String Quintet in E Major, Op.11: No.5, III. Minuetto (Menuet - Minuet)
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The Nutcracker, Op. 71, Act II, Scene XII: E. Dance of the Toy Flutes
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Piano Sonata No. 14 in C-Sharp Minor, Op.27: No.2 "Moonlight": I. Adagio sostenuto
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Serenade No. 13 for Strings in G Major, K. 525 - "Eine kleine Nachtmusik": II. Romance. Andante
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The Damnation of Faust, Op.24, Part II: VII. Dance of the Sylphides
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Gypsy Meldoies, Op. 55: No. 4, Songs My Mother Taught Me
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Songs Without Words, Op. 62: No. 5, The Venetian Gondola
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Lyric Pieces, Op. 43: No. 1, "Butterfly"
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Piano Concerto No. 21 in C Major, K. 467 - "Elvira Madigan": II. Andante
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The Magic Flute, K.620, Act I: "Der Vogelfänger bin ich ja" (Instrumental Version)
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Peer Gynt Suite No. 2, Op. 55: IV. Solveig's Song
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Humoresque No. 7 in G-Flat Major, Op. 101
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Clarinet Concerto in A Major, K.622: II. Adagio
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Serenade for Strings in E Major, Op. 22: I. Moderato
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Fantasiestücke (Fantasy Pieces) in D-Flat Major, Op. 12: Des Abends (Evening)
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Orfeo ed Euridice, Act II: Dance of the Blessed Spirits
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Songs Without Words, Op. 62: No. 6 - "Spring Song"
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Carnival of the Animals: IX. The Cuckoo in the Depths of the Woods
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Souvenir de Hapsal, Op. 2: No. 3, Chant sans paroles
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Symphony No. 9 in E Minor, Op. 95, B. 178 - "From the New World": II. Largo (Excerpt)
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Violin Concerto No. 2 in D Minor, Op. 22: II. Romance
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Two Pieces for the Left Hand, Op. 9: No. 2, Nocturne in D-Flat Major
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Four Impromptus No. 3 in G-Flat Major, Op. 90, D. 899
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Piano Quintet in A Major, D. 667 - "The Trout": IV. Andante (Excerpt)
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Meditation: Classic Care - Music for Healthy Living for Calming Reflection & Quiet Time
The Carnival of the Animals : VII. Aquarium
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Orchestral Suite No. 3 in D Major, BWV 1068 : II. Air
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Piano Concerto No. 21 in C Major, K. 467 : II. Andante
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 : No. 2, "Moonlight Sonata"
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String Quartet in F Major, Op. 3: No. 5, "Serenade"
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String Quintet in E Major, Op. 13, No. 5: 3. Minuet
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Bagatelle No. 25 in A Minor, WoO 59, "Für Elise"
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Classical Music for the Reader: Great Masterpieces for the Dedicated Reader
Handel: Serse - Ombra Mai Fu (Handel's Largo)
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Haydn: String Quartet In F, Op. 3/5, "Serenade" - Serenade
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Debussy: Suite Bergamasque, L 75 - Clair De Lune
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Classical Brain Power - Over 7 Hours of Music for Concentration, Productive Learning, Studying and Working
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Serenade for Strings in F Major, Op. 3: No. 5
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Classical Stress Relief: 99 Must-Have Classical Meditation & Relaxation
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": I. Adagio sostenuto
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Peer Gynt, Op. 23, Act III: Solveig's Song
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Tosca, Act III: "E lucevan le stelle" (Instrumental Version)
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Classical Masterpieces of the Millennium
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Catnap Classics: For Peaceful Sleep, Naps & Dreams
Ellen's Chants, D. 839, Op. 56: III. Ave Maria
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Suite bergamasque, L. 75: III. Clair de Lune - "Moonlight"
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": II. Romance - Andante
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Etude in E Major, Op. 10: No. 3, "Tristesse"
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The Tales of Hoffmann, Act II: Barcarole
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Scenes of Childhood, Op. 15: VII. Träumerei
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Clarinet Concerto in A Major, K. 622: II. Adagio
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Concerto for Piano, Strings and Continuo No. 1 in D Minor, BWV 1052: II. Adagio
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27: No. 2, "Moonlight Sonata": I. Adagio Sostenuto
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Madama Butterfly, Act II: Butterfly's Aria - "Un bel di vedremo" (Instrumental Version)
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A Midsummer Night's Dream, Op. 61: II. Notturno
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Piano Sonata No. 8 in C Minor, Op. 13, "Pathétique": II. Adagio cantabile
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Capriccio Espagnol, Op. 34: II. Variations
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Swan Lake, Op. 20, Act II: XIII. Dance of the Swans
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Two Waltzes in A Major, Op. 54: No. 1, Moderato
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100 Must-Have History of Classical Music
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Mozart: Wohlfühlen in der Schwangerschaft - Beruhigende und entspannende Musik für mich und mein Baby
Sleep & Dreams: 99 Must-Have Classical Masterpieces