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 0x2ac0e2831164f5128eee7fbe410cb2a3b591d3e6327ba4e09e5efe9f32bb071f. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/328e33ea-ba4c-45c2-9e07-b08307e93f8c.json and https://artists.proofprofile.net/proofs/artist/328e33ea-ba4c-45c2-9e07-b08307e93f8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Galgenlieder a 5 (Gallows Songs): I. Die Mitternachtsmaus
Galgenlieder a 5 (Gallows Songs): II. Das asthetische Wiesel
Galgenlieder a 5 (Gallows Songs): III. Das Knie
Galgenlieder a 5 (Gallows Songs): IV. Die Beichte des Wurms
Galgenlieder a 5 (Gallows Songs): V. Improvisation
Galgenlieder a 5 (Gallows Songs): VI. Die Prozession
Galgenlieder a 5 (Gallows Songs): VII. Der Tanz
Galgenlieder a 5 (Gallows Songs): VIII. Das Gebet
Galgenlieder a 5 (Gallows Songs): IX. Das Fest des Wustlings
Galgenlieder a 5 (Gallows Songs): X. Das Spiel I
Galgenlieder a 5 (Gallows Songs): XI. Das Spiel II
Galgenlieder a 5 (Gallows Songs): XII. Fisches Nachtgesang
Galgenlieder a 5 (Gallows Songs): XIII. Nein!
Galgenlieder a 5 (Gallows Songs): XIV. Das Mondschaf
Cello and Bayan Arrangements - Piazzolla, A. / Villa-Lobos, H. / Falla, M. / Stravinsky, I. / Tsintsadze, S.
Histoire du Tango: II. Cafe 1930 (arr. for cello and bayan)
Tanti anni prima (arr. E. Moser): Tanti Anni Prima (arr. for cello and bayan)
Le Grand Tango (arr. for cello and bayan)
Bachianas brasileiras No. 5: I. Aria (arr. for cello and bayan)
7 Canciones populares espanolas (arr. E. Moser): No. 1. El pano moruno
7 Canciones populares espanolas (arr. E. Moser): No. 5. Nana
7 Canciones populares espanolas (arr. E. Moser): No. 6. Cancion
7 Canciones populares espanolas (arr. E. Moser): No. 7. Polo
7 Canciones populares espanolas (arr. E. Moser): No. 3. Asturiana
7 Canciones populares espanolas (arr. E. Moser): No. 4. Jota
Suite italienne (arr. E. Moser): I. Introduzione
Suite italienne (arr. E. Moser): II. Serenata
Suite italienne (arr. E. Moser): III. Aria
Suite italienne (arr. E. Moser): IV. Tarantella
Suite italienne (arr. E. Moser): V. Minuetto e Finale
5 Pieces: No. 3. Sachidao (arr. for cello and bayan)
Triple Concerto for Violin, Cello & Piano in C Major, Op. 56: I. Allegro
Violin Sonata No. 1 in G Major, Op. 78: I. Vivace ma non troppo (Arr. For cello and piano)
Ruralia hungarica, Op. 32d "Andante rubato": Ruralia Hungarcia for Cello and Piano, Op. 32d
Cello Sonata No. 1 in G Minor, Op. 59: III. Finale. Allegro molto
Cello Sonata, Op. 4: I. Fantasia. Adagio di molto
Concerto for Violin & Cello in A Minor, Op. 102: I. Allegro
10 Violin Sonatas, Book 1: No. 5 in D Minor: Allegro spiritoso (trans. J. Salmon) [arr. J. Salmon for cello and piano]
Cello Suite No. 5 in C Minor, BWV 1011: I. Prelude
Romance, Op. 69: Romance in A Major, Op. 69
Cello Suite No. 5 in C Minor, BWV 1011: IV. Sarabande
Cello Concerto No. 2 in D Minor, Op. 119: II. Allegro non troppo
Cello Sonata in F Major, Op. 16, No. 1: III. Allegretto
7 Worte (7 Words): Mein Gott, mein Gott, warum hast du mich verlassen? [My God, my God, why hast thou forsaken me?]
Il Barbiere di Siviglia: Largo al factotum (Arr. for Cello & Piano)
Suite in D Minor, Op. 16: II. Serenade: Andantino
Etude No. 6 in E-Flat Minor, Op. 10, No. 6 (Arr. A. Glazunov)
Suite in D Minor, Op. 16: III. Scherzo. Allegro grazioso
Nocturne in C-Sharp Minor, B. 49 (Arr. G. Piatigorsky for Cello & Piano)
6 Morceaux, Op. 51, No. 6. Valse sentimentale: Valse sentimentale in F Minor, Op. 51, No. 6 (Arr. N. Mercz)
Duo, Op. 7: I. Allegro serioso, non troppo
Cello Sonata No. 1 in B-Flat Major, Op. 45, MWV Q 27: II. Andante
5 Stücke im Volkston (5 Pieces in Folk Style), Op. 102 (version for cello and piano): No. 2. Langsam
Im Walde, Op. 50: V. Herbstblume (arr. P. Breiner for orchestra)
Cello Concerto in E Minor, Op. 85: IV. Allegro - Moderato - Allegro ma non troppo
Im Walde, Op. 50: VI. Heimkehr (Homecoming) [arr. P. Breiner for orchestra]
Cello Concerto No. 2 in G Major, Op. 126: III. Allegreto
Polish National Radio Symphony Orchestra
The Nutcracker, Op. 71, TH 14: No. 12d, Trépak. Russian Dance
Lieutenant Kije Suite, Op. 60: IV. Troika
Orquestra Sinfônica do Estado de São Paulo
The Tale of Tsar Saltan: Flight of the Bumblebee
6 Moments musicaux, Op. 16: No. 5, Adagio sostenuto
Symphony No. 10 in E Minor, Op. 93: II. Allegro
The Firebird Suite (1919 Version): VII. Finale
3 Khora: No. 2, Lyubov Svyataya (3 Choruses: Sacred Love)
Komedianti, Op. 26: II. Galop (The Comedians)
The Fair at Sorochintsy, Sorochintsi Fair, Act I: Gopak (Hopak)
2 Melodies, Op. 3: No. 1 in F Major. Moderato assai
Caucasian Sketches: IV. Procession of the Sardar
Andersen Fairy Tales Suite: III. The Soldier's Sailing
Près de la mer, Op. 52: No. 4, Allegro moderato
The Sleeping Beauty, Op. 66: No. 6, Waltz
Košice Slovak State Philharmonic Orchestra
Pictures at an Exhibition: II. Il vecchio castello (Orch. M. Ravel)
10 Communion Hymns, Op. 25: No. 5, Spaseniye sodelal
Romeo and Juliet, Op. 56: VIII. Tarantella
Moscow Radio Tchaikovsky Symphony Orchestra
Karelia State Philharmonic Symphony Orchestra
Romeo & Juliet, Op. 64, Act I: No. 13, Dance of the Knights (Montagues & Capulets)
Symphony No. 2 in A Major: II. Andante cantabile
Memory Eternal to the Fallen Heroes: III. Give Rest, O Our Saviour
The Rite of Spring, Pt. II: The Sacrifice. Sacrificial Dance
Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato
Russia Adrift (Arr. L. Rezetdinov): No. 1, Autumn
Le pavillon d'Armide, Op. 29 (Excerpts): No. 2, Danse des heures
Concert Suite, Op. 28: V. Tarantella. Presto
Sonic Rebellion - Alternative Classical Collection
Threnody To the Victims of Hiroshima: Tren (Threnody), "To the Victims of Hiroshima"
Sonatas and Interludes for Prepared Piano: First Interlude
4 pezzi (su una nota sola): 4 Pezzi: II. —
In C (version for chamber ensemble): In C (excerpt)
Deserts: Third Electronic Interpolation (beginning)
Songs, Drones and Refrains of Death: Death-Drone II
Shaker Loops (version for string orchestra): A Final Shaking
Piano Concerto No. 1, Op. 45: I. Con grandezza
Gubaidulina: Seven Words / Silenzio / In Croce
In croce (version for cello and accordion)
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c46dc1680f35d928f9d604d146f6f6c283ea971325950a8d1399cb038d03a58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199510601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ae7ebce317ae4b26b0e7690313486928b1d30b355c91c8d2bd944b8c1ef0d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199510603.
7 Worte (7 Words): Vater, vergib ihnen, denn sie wissen nicht, was sie tun (Father, forgive them....)
7 Worte (7 Words): Weib, siehe, das ist dein Sohn. Siehe, das ist deine Mutter (Woman, behold thy Son. Son, behold....)
7 Worte (7 Words): Wahrlich, ich sage dir: Heute wirst du mit mir im Paradiese sein (Verily, I say unto thee....)
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7 Worte (7 Words): Mein Gott, mein Gott, warum hast du mich verlassen? (My God, my God, why hast thou forsaken me?)
7 Worte (7 Words): Mich durstet (I Thirst)
7 Worte (7 Words): Es ist vollbracht (It is accomplished)
7 Worte (7 Words): Vater, ich befehle meinen Geist in deine Hande (Father, into thy hands I commend my spirit)
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Sofia Gubaidulina - Triple Concerto for Violin, Cello and Bayan & Rejoice! for Violin and Cello
Rejoice!: I. Your Joy No One Will Take Away from You
Rejoice!: IV. And He Returned to His Own Abode
Gubaidulina: 7 Worte; 10 Preludes; De profundis
Sieben Worte for Cello, Bayan & Strings: I. Vater, vergib ihnen, denn sie wissen nicht, was sie tun
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Sieben Worte for Cello, Bayan & Strings: II. Weib, siehe, das ist dein Sohn – Siehe, das ist deine Mutter
Sieben Worte for Cello, Bayan & Strings: III. Wahrlich, ich sage dir: Heute wirst du mit mir im Paradiese sein
Sieben Worte for Cello, Bayan & Strings: IV. Mein Gott, mein Gott, warum hast du mich verlassen?
Sieben Worte for Cello, Bayan & Strings: V. Mich dürstet
Sieben Worte for Cello, Bayan & Strings: VI. Es ist vollbracht
Sieben Worte for Cello, Bayan & Strings: VII. Vater, ich befehle meinen Geist in deine Hände
Ten Preludes for Cello Solo: I. Staccato – Legato
Ten Preludes for Cello Solo: II. Legato – Staccato
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Ten Preludes for Cello Solo: III. Con sordino – Senza sordino
Ten Preludes for Cello Solo: IV. Ricochet
Ten Preludes for Cello Solo: V. Sul ponticello – Ordinario – Sul tasto
Ten Preludes for Cello Solo: VI. Flagioletti
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Ten Preludes for Cello Solo: VII. Al taco – Da punta d'arco
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Ten Preludes for Cello Solo: VIII. Arco – Pizzicato
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Ten Preludes for Cello Solo: IX. Pizzicato – Arco
Ten Preludes for Cello Solo: X. Senza arco, Senza pizzicato
Sofia Gubaidulina - Triple Concerto for Violine, Cello and Bayan
Triple Concerto for Violin, Cello and Bayan: Triple Concerto for Violin, Cello and Bayan
Gubaidulina: Seven Words; String Trio; Garten von Freuden und Traurigkeiten (Lockenhaus Collection Vol. 10)
Seven Words for Cello, Bayan and Strings
Kammerorchester der jungen deutschen Philharmonie
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The King of the Sun: I. Personages in the night guided by the phosphorescent tracks of snail: Stealthily
The King of the Sun: II. Dutch interior: Phantasmagorical
The King of the Sun: III. Dancer listening to the organ in a Gothic cathedral: Granitic
The King of the Sun: IV. The flames of the sun make the desert flower hysterical: Fiery
The King of the Sun: V. Personages and birds rejoicing at the arrival of night: Quietly energetic, with an air of innocence
Tango del Diablo (arr. K. Raptis and E. Moser for bayan and chamber ensemble)
Vayamos al Diablo (arr. K. Raptis and E. Moser for bayan and chamber ensemble)
Romance del Diablo (arr. K. Raptis and E. Moser for bayan and chamber ensemble)
Piano Quartet No. 3 in C Minor, Op. 60: I. Allegro ma non troppo
Piano Quartet No. 3 in C Minor, Op. 60: II. Scherzo: Allegro
Piano Quartet No. 3 in C Minor, Op. 60: III. Andante
Piano Quartet No. 3 in C Minor, Op. 60: IV. Allegro comodo