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 0x546f565080757cb0a7cce381d2c9ed0a5e655956f79b60642d4ce5949c78d686. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20f7b88c-8406-493d-8020-98e5873b4d0f.json and https://artists.proofprofile.net/proofs/artist/20f7b88c-8406-493d-8020-98e5873b4d0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concerto pour piano et orchestre: I. Allegretto
Concerto pour piano et orchestre: II. Andante con moto: Commencer très calmement
Concerto pour piano et orchestre: III. Rondeau à la française: Presto giocoso
Concerto en ré mineur pour deux pianos et orchestre: I. Allegro ma non troppo
Concerto en ré mineur pour deux pianos et orchestre: II. Larghetto
Concerto en ré mineur pour deux pianos et orchestre: III. Finale
Concerto en sol mineur pour orgue, orchestre à cordes et timbales
Elgsonaten: Sonate For Viola Og Klaver - I. Sostenuto, Maestoso - Allegro, Ma Non Tanto
Elgsonaten: Sonate For Viola Og Klaver - II. Adagio
Friesische Landschaft, Op. 78 - Für Bratsche Und Klavier
Elegi Og Capriccio, Op. 47 - Elegi - For Solo Bratsj, Skrevet For Lars Anders Tomter
Elegi Og Capriccio, Op. 47 - Capriccio - For Solo Bratsj, Skrevet For Lars Anders Tomter
Sonatine For Bratsj Og Klaver - I. Allegro Con Moto
Sonatine For Bratsj Og Klaver - II. Allegretto
Sonatine For Bratsj Og Klaver - III. Allegro Animoso
Sonata In Un Movimento, Op. 77 - Per Piano Forte. A Håvard Gimse
Sonata in B-Flat Major, Op. 36: I. Maetoso - Allegro - Maetoso - Allegro
Sonata in B-Flat Major, Op. 36: II. Barcarolla: Andante con moto - Allegretto tranquillo - Animato
Sonata in B-Flat Major, Op. 36: III. Finale Scherzando: Allegretto
Capriccio in C-Minor, Op. 61: For viola solo
Sonata For Violin and Piano in A Major : I. Allegretto Ben Moderato
Sonata For Violin and Piano in A Major : II. Allegro
Sonata For Violin and Piano in A Major : III. Recitativo - Fantasia: Ben Moderato
Sonata For Violin and Piano in A Major : IV. Allegretto poco mosso
Halvorsen: Suite Mosaique, Op. 35, IV. Veslemøys sang
Suite Mosaique, Op. 35: IV. Veslemøys sang
{"copyright_id":"0x768cd232bf58ad036abde0c75f73a6cf9bd9bae7a13c8ead7d89e1e7b521e9f0","isrc":"DEE862301597","name":"Suite Mosaique, Op. 35: IV. Veslemøys sang","registered_at":"2026-06-05T15:58:36Z","spotify_id":"69KS1hdIUrss7KPnaK5ulg","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768cd232bf58ad036abde0c75f73a6cf9bd9bae7a13c8ead7d89e1e7b521e9f0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69KS1hdIUrss7KPnaK5ulg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69KS1hdIUrss7KPnaK5ulg.
Sonata In B-Flat Kv 378. Allegro Moderato
Sonata In B-Flat Kv 378. Andantino Sostenuto E Cantabile
Sonata In A-Major Op. 13. Allegro Quasi Presto
Five Melodies Op. 35a. Lento Man Non Troppo
Five Melodies Op. 35a. Animato Ma Non Allegro
Five Melodies Op. 35a. Allegretto Leggero E Scherzando
Five Melodies Op. 35a. Andante Non Troppo
Stravinsky goes Bach and Schaathun goes Frescobaldi
Sonata in C-Major, KV. 545: 3. Rondo. Allegretto
Sonata in F-Major, KV. 533/494: 1. Allegro
Sonata in F-Major, KV. 533/494: 2. Andante Molto
Sonata in F-Major, KV. 533/494: 3. Rondo. Allegretto
Sonata in C-Minor, KV. 457: 1. Allegro Molto
Sonata in C-Minor, KV. 457: 2. Adagio Molto
Sonata in C-Minor, KV. 457: 3. Allegro Assai
5 Pieces, Op. 75, "the Trees": No. 3 Aspen
Piano Concerto in A Minor, Op. 16: II. Adagio
Akvareller, Op. 5: Aquarelles, Op. 5: No. 2, Miniature
50 Folk-Tunes from Hardanger, Op. 150: Mountain Call
5 Esquisses, Op. 114, No. 2: Talvikuva (Winter Scene)
Cello Sonata in A Minor, Op. 36: II. Andante molto tranquillo
6 Bagatelles, Op. 97: No. 3: Kleiner Walzer
Norwegian Dance, "Gamel Holin": Norwegian Dance No. 2, "Gamel Holin" (Old Holin)
Piano Concerto No. 1 in F Major, Op. 5: II. Giocoso
25 Norwegian Folksongs and Dances, Op. 17: No. 12, Solfager og Ormekongen (Solfager and the Snake-King)
3 Pieces, Op. 12: No. 1, Phantasy in Halling
6 Impromptus, Op. 5: Impromptu No. 5 in B Minor
Piano Concerto No. 4, Op. 130, "Aurora Borealis": III. Fading away in the bright night of spring
Piano Sonata in E Minor, Op. 7: I. Allegro moderato (1887 revised Version)
Piano Concerto in A Minor, Op. 16: I. Allegro moderato
5 Pieces, Op. 75, "the Trees": No. 5, The Spruce
Baldurs draumar (Baldur's Dreams): Balder's Dream: The Invulnerable
Cello Sonata, H.125: I. Allegro ben moderato
Cello Sonata, H.125: II. Adagio ma non troppo - Molto allegro agitato
Cello Sonata, CD 144: I. Prologue (Lent, sostenuto e molto risoluto)
Cello Sonata, CD 144: II. Sérénade (Modérément animé)
Cello Sonata, CD 144: III. Final (Animé, léger et nerveux)
Cello Sonata, Op. 65: I. Dialogo (Allegro)
Cello Sonata, Op. 65: II. Scherzo-Pizzicato (Allegretto)
Cello Sonata, Op. 65: III. Elegia (Lento)
Cello Sonata, Op. 65: IV. Marcia (Energico)
Cello Sonata, Op. 65: V. Moto perpetuo (Presto)
Piano Concerto No. 11, KV 413: 1. Allegro
Piano Concerto No. 11, KV 413: 2. Larghetto
Piano Concerto No. 11, KV 413: 3. Tempo di Menuetto
Piano Concerto No. 12, KV 414: 1. Allegro
Piano Concerto No. 12, KV 414: 2. Andante
Piano Concerto No. 12, KV 414: 3. Allegretto
Piano Concerto No. 13, KV 415: 1. Allegro
Piano Concerto No. 13, KV 415: 2. Andante
Piano Concerto No. 13, KV 415: 3. Allegro
Violin Sonata No. 2 in D major, Op. 94: I. Moderato
Violin Sonata No. 2 in D major, Op. 94: II. Presto
Violin Sonata No. 2 in D major, Op. 94: III. Andante
Violin Sonata No. 2 in D major, Op. 94: IV. Allegro con brio
5 Mélodies, Op. 35: II. Lento, ma non troppo
5 Mélodies, Op. 35: III. Animato, ma non allegro
5 Mélodies, Op. 35: IV. Andantino, un poco scherzando
5 Mélodies, Op. 35: V. Andante non troppo
Violin Sonata No. 1 in F minor, Op. 80: I. Andante assai
Violin Sonata No. 1 in F minor, Op. 80: II. Allegro brusco
Violin Sonata No. 1 in F minor, Op. 80: III. Andante
Violin Sonata No. 1 in F minor, Op. 80: IV. Allegrissimo
Miss Julie (Ullmann) (Original Motion Picture Soundtrack)
Träumerei Op 15 Nr 7 / Det Er Den Draumen / Lykke / Flyktende Ungdom / Teltduk / Den Hvite Skjorten / Impromptu Op 5 Nr 5
Fru Nitters Datter / Møte (Første to Vers) / Elsk / Du Fatter Ei Bølgernes Evige Gang, Op 52 Nr 3
Menn / Kjøssing I Biblioteket / Hasche-Mann Op 15 Nr 3 / I Berg / Kort Møte / En Kjærlighetshistorie / Erklæring
Søstrene / Episode / Fattern Elska Rødvin... / Kjempeviseslåtten Op 22 Nr 5
Borte / På Havstrandi / Den Dag Kjem Aldri / Aldri
Metope / Preludium I Fiss Dur Op 28 Nr 13
Fattig Ynskje / Også Du / Som Regn. Høyrer Vi Den Same Lyden. I Kvarandre / Er Det Stille / Arvesylv
Ord over Grind / Hold Min Hånd / Asfalt / Utruleg / Ferdaminne Frå Sommaren 1985 / Preludium I Ciss Moll Op 28 Nr 10
Junikveld / Jeg Holder Ditt Hode / Preludium I B Dur Op 28 Nr 21
Plutselig. I Desember. / Fra "Victoria" / Preludium I D Moll Op 28 Nr 24
Arvesylv. Works by Tveitt, Sæverud and Mørk Karlsen
Arpeggione Sonata, D.821: I. Allegromoderato
Arpeggione Sonata, D.821: III. Allegretto
Kinderszenen, Op.15: Furchtenmachen in E Minor
Kinderszenen, Op.15: Kuriose Geschichte in D Major
Kinderszenen, Op.15: Hasche-Mann in B Minor
Kinderszenen, Op.15: Bittendes Kind in D Major
Kinderszenen, Op.15: Gluckes Genug in D Major
Kinderszenen, Op.15: Wichtige Begebenheit in A Major
Kinderszenen, Op.15: Traumerei in F Major
Kinderszenen, Op.15: Am Kamin in F Major - Ritter vom Steckenpferd
Kinderszenen, Op.15: Knight of the Hobbyhourse in C Major
Kinderszenen, Op.15: Fast zu ernst in G-Sharp Minor
Kinderszenen, Op.15: Kind im Einschlummern in E Minor
Kinderszenen, Op.15: Der Dichter spricht in G Major
Piano Sonata in A Minor, D.784: I. Allegro giusto
Piano Sonata in A Minor, D.784: II. Andante
Piano Sonata in A Minor, D.784: III. Allegro vivace
Piano Concerto In E Flat Major, Op. 29 - I Allegro
Piano Concerto In E Flat Major, Op. 29 - Ii Adagio
Piano Concerto In E Flat Major, Op. 29 - Iii Presto
Piano Concerto, Op. 85 - I Allegro Maestoso
Piano Concerto, Op. 85 - Ii Andante Poco Sostenuto
Piano Concerto, Op. 85 - Iii Allegro Vivace
Sonata For Violin And Piano - I: Allegro Moderato
Sonata For Violin And Piano - Ii: Andante
Sonata For Violin And Piano - Iii: Vivace
Hungarian Folksongs For Violin And Piano Part I - Andante - Un Poco Più Lento
Hungarian Folksongs For Violin And Piano Part I - Allegretto
Hungarian Folksongs For Violin And Piano Part I - Lento, Ma Non Troppo
Hungarian Folksongs For Violin And Piano Part I - Allegro
Hungarian Folksongs For Violin And Piano Part Ii - Lento, Poco Rubato
Hungarian Folksongs For Violin And Piano Part Ii - Allegretto
Hungarian Folksongs For Violin And Piano Part Ii - Allegretto Scherzando
Hungarian Folksongs For Violin And Piano Part Ii - Sostenuto - Allegro - Adagio
Hungarian Folksongs For Violin And Piano Part Ii - Allegro Robusto
Sonata For Solo Violin - I: Tempo Di Ciaccone
25 Norwegian Folksongs and Dances, Op. 17: No. 12. Solfager og Ormekongen (Solfager and the Snake-King)
Piano Concerto No. 2, Op. 21, "Symphonic Variations and Fugue on a Norwegian Folktune"
3 Pieces, Op. 12: No. 1. Phantasy in Halling
Piano Sonata No. 1, Op. 4, "Draumkvede": I. Grave - Allegro moderato
Piano Sonata No. 1, Op. 4, "Draumkvede": II. Adagio ma non troppo
Piano Sonata No. 1, Op. 4, "Draumkvede": III. Scherzo infernale
Piano Sonata No. 1, Op. 4, "Draumkvede": IV. Allegro in halling
Norwegian Dance No. 2, "Gamel Holin" (Old Holin)
Akvareller, Op. 5: Aquarelles, Op. 5: No. 2. Miniature
Haydn: Sonata in C - Mozart: 3 Rondos - Beethoven: Moonlight Sonata
Sonata in C, Hob. X V I:50: III. Allegro molto
Sonata, Op.27, No.2: I. Adagio sostenuto
Sonata, Op.27, No.2: II. Allegretto and Trio
Sonata, Op.27, No.2: III. Presto agitato
6 Bagatelles, Op. 97: No. 1: Humoreske I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1968848684788e2c90431436f1dec4cfa61065a6e2e5f7bbfa784aa2e23f8cbb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3NuzrXsusvBTgGg02nFoWK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3NuzrXsusvBTgGg02nFoWK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54ef03c77d2b5bff626a595179d2e5659a3e03e668982a82eed2cf5239d3056. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1cUYuXwM1aQH4chzco4eWV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1cUYuXwM1aQH4chzco4eWV.
6 Bagatelles, Op. 97: No. 4: Humoristischer Marsch
6 Bagatelles, Op. 97: No. 6: Humoreske II
8 Pieces, Op. 99: No. 1: Piece humoristique
8 Pieces, Op. 99: No. 7: Moment de valse
5 Romantic Pieces, Op. 101: No. 1: Romance
5 Romantic Pieces, Op. 101: No. 2: Chant du soir
5 Romantic Pieces, Op. 101, No. 3: Scene lyrique
5 Romantic Pieces, Op. 101: No. 4: Humoresque
5 Romantic Pieces, Op. 101, No. 5: Scene romantique
5 Characteristic Impressions, Op. 103: No. 1: The Village Church
5 Characteristic Impressions, Op. 103: No. 2: The Fiddler
5 Characteristic Impressions, Op. 103: No. 3: The Oarsman
5 Characteristic Impressions, Op. 103: No. 4: The Storm
5 Characteristic Impressions, Op. 103: No. 5: In Mournful Mood
5 Esquisses, Op. 114: No. 1: Maisema (Landscape)
5 Esquisses, Op. 114: No. 3: Metsalampi (Forest Lake)
5 Esquisses, Op. 114: No. 4: Metsalaulu (Song in the Forest)
5 Esquisses, Op. 114: No. 5: Kevatnaky (Spring Vision)
No. 2 Sanfter Westwind (Gentle West Wind)
No. 3 Auf dem Tanzvergnugen (the Pleasures of the Dance)
No. 1 Nar ronnen blommar (When the Rowan Blossoms)
No. 2 Den ensamna furan (the Lonely Fir)
No. 11 Linnaea (Twinflower of the North)
No. 4 Berger et bergerette (Shepherd and Shepherdess)
Grieg: Folk Dances, Songs & Original Piano Transcriptions
Folk Dances, Op. 17: Norwegian Dance, Op. 17/1
Folk Dances, Op. 17: The Wooer's Song, Op. 17/10
Folk Dances, Op. 17: Cattle Call, Op. 17/22
Folk Dances, Op. 17: Dance from Jolster, Op. 17/5
Folk Dances, Op. 17: Solfager and Ormekongen, Op. 17/12
Folk Dances, Op. 17: Did You See My Old Woman?, Op. 17/23
Folk Dances, Op. 17: Bridal Tune, Op. 17/24
Folk Dances, Op. 17: Holje Dale, Op. 17/19
Folk Dances, Op. 17: Cheerful Tune, Op. 17/18
Songs, Op. 41: My Love She Was So Pure, Op. 41/4
Songs, Op. 41: To Springtime My Song I Utter, Op. 41/6
Norwegian Peasant Dances, Op. 72: Wedding March of the Goblins, Op. 72/14
Norwegian Peasant Dances, Op. 72: Havar Giböen's Dream, Op. 72/13
Norwegian Peasant Dances, Op. 72: Wedding March After Myllarguten, Op. 72/8
Norwegian Peasant Dances, Op. 72: Rotnamsnut from Hallingdal, Op. 72/7
Norwegian Peasant Dances, Op. 72: The Maidens from Kivle, Op. 72/16
Norwegian Peasant Dances, Op. 72: Jon Vaestafae's Spring Dance, Op. 72/2
Norwegian Folk Songs, Op. 66: Cow Call, Op. 66/1
Norwegian Folk Songs, Op. 66: Lullaby, Op. 66/7
Norwegian Folk Songs, Op. 66: Call, Op. 66/8
Norwegian Folk Songs, Op. 66: Ranveig, Op. 66/12
Norwegian Folk Songs, Op. 66: In Ola Valley, In Ola Lake, Op. 66/14
Norwegian Folk Songs, Op. 66: Lullaby, Op. 66/13
Norwegian Folk Songs, Op. 66: I Wander Deep in Thought, Op. 66/18
Norwegian Folk Songs, Op. 66: Gjendine's Lullaby, op. 66/19
Piano Sonatina in F-Sharp Minor, Op. 67, No. 1: Allegro
Piano Sonatina in F-Sharp Minor, Op. 67, No. 1: Largo
Piano Sonatina in F-Sharp Minor, Op. 67, No. 1: Allegro moderato
Piano Sonatina in E Major, Op. 67, No. 2: Allegro
Piano Sonatina in E Major, Op. 67, No. 2: Andantino
Piano Sonatina in B-Flat Minor, Op. 67, No. 3: Andante - Allegro moderato
Piano Sonatina in B-Flat Minor, Op. 67, No. 3: Andante
Piano Sonatina in B-Flat Minor, Op. 67, No. 3: Allegretto
2 Rondinos, Op. 68: Rondino No. 1 in G-Sharp Minor
2 Rondinos, Op. 68: Rondino No. 2 in C-Sharp Minor
Piano Concerto No. 1 in F Major, Op. 5: I. Tranquillo
Piano Concerto No. 1 in F Major, Op. 5: III. Lento
Piano Concerto No. 5, Op. 156: I. Tempo di "Springar"
Piano Concerto No. 5, Op. 156: II. Danse aux campanules bleus
Piano Concerto No. 5, Op. 156: III. Tempo di "Halling"
Sonata In A-Major, Op. 9 for Violin and Piano: Allegro Glorioso
Sonata In A-Major, Op. 9 for Violin and Piano: Andante
Sonata In A-Major, Op. 9 for Violin and Piano: Allegro Piacevole è Giovanile
Sonata No. 2, Op. 35 for Violin and Piano: Allegro
Sonata No. 2, Op. 35 for Violin and Piano: Molto Adagio
Sonata No. 2, Op. 35 for Violin and Piano: Allegro Piacevole
Prelude and Theme with Variations, Op. 48 for Solo Violin: Prelude
Prelude and Theme with Variations, Op. 48 for Solo Violin: Theme with Variations
Preludio é Presto, Op. 52 for Solo Violin: Preludio
Preludio é Presto, Op. 52 for Solo Violin: Presto
6 Finnish Folksongs, JS 81: No. 1. Minum Kultani (My Beloved)
6 Finnish Folksongs, JS 81: No. 2. Sydamestani Rakastan (I Love You With My Whole Heart)
6 Finnish Folksongs, JS 81: No. 3. Ilta Tulee (Evening Comes)
6 Finnish Folksongs, JS 81: No. 4. Tuopa Tytto (That Beauty)
6 Finnish Folksongs, JS 81: No. 5. Velisurmaaja (Killing A Brother)
6 Finnish Folksongs, JS 81: No. 6. Haamuistelma (Wedding Memories)
{"copyright_id":"0xd3adbfc2cb7a53caba6ff67531ab9b666e488ecb6914b68c64f26d914b0a9e2b","isrc":"HKI190016406","name":"6 Finnish Folksongs, JS 81: No. 6. Haamuistelma (Wedding Memories)","registered_at":"2026-06-25T23:31:01Z","spotify_id":"0iQjFogmHlVGpsbDA5xPJM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3adbfc2cb7a53caba6ff67531ab9b666e488ecb6914b68c64f26d914b0a9e2b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0iQjFogmHlVGpsbDA5xPJM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0iQjFogmHlVGpsbDA5xPJM.
10 Little Pieces, Op. 34: No. 2. Air De Danse
10 Little Pieces, Op. 34: No. 3. Mazurka
10 Little Pieces, Op. 34: No. 4. Couplet
{"copyright_id":"0x8a435e09bccbefda7ada285c2430d99b7bea831c02a6a7d0d3aa9ca2205f35e4","isrc":"HKI190016410","name":"10 Little Pieces, Op. 34: No. 4. Couplet","registered_at":"2026-06-22T04:16:23Z","spotify_id":"1dUG4QhQRjODRA6DbNG5Os","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a435e09bccbefda7ada285c2430d99b7bea831c02a6a7d0d3aa9ca2205f35e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1dUG4QhQRjODRA6DbNG5Os.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1dUG4QhQRjODRA6DbNG5Os.
10 Little Pieces, Op. 34: No. 5. Boutade
10 Little Pieces, Op. 34: No. 6. Reverie
10 Little Pieces, Op. 34: No. 7. Danse Pastorale
10 Little Pieces, Op. 34: No. 8. Joueur De Harpe
10 Little Pieces, Op. 34: No. 9. Reconnaissance
10 Little Pieces, Op. 34: No. 10. Souvenir
Kavaljeren (The Cavalier), JS 109: Kavaljeren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4591143af2413c9c68a3b5c6f370191a087248431919697424b490d4393939. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2AZWSNETexBgTaBvqrHYsI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2AZWSNETexBgTaBvqrHYsI.
Dance Intermezzo, Op. 45, No. 2 (Version For Piano): Dance Intermezzo, Op. 45, No. 2
10 Pensees Lyriques, Op. 40: No. 1. Valsette
{"copyright_id":"0xf817c3f7c9eb1fb7adf1a62a87f69434d122e0b4b922e455c5fcbbdc855414f9","isrc":"HKI190016423","name":"10 Pensees Lyriques, Op. 40: No. 1. Valsette","registered_at":"2026-06-24T15:43:47Z","spotify_id":"36lO43HUpM49JRBf02xKwF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf817c3f7c9eb1fb7adf1a62a87f69434d122e0b4b922e455c5fcbbdc855414f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/36lO43HUpM49JRBf02xKwF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/36lO43HUpM49JRBf02xKwF.
10 Pensees Lyriques, Op. 40: No. 2. Chant Sans Paroles
10 Pensees Lyriques, Op. 40: No. 3. Humoresque
10 Pensees Lyriques, Op. 40: No. 4. Minutetto
10 Pensees Lyriques, Op. 40: No. 5. Berceuse
10 Pensees Lyriques, Op. 40: No. 6. Pensee Melodique
10 Pensees Lyriques, Op. 40: No. 7. Rondoletto
10 Pensees Lyriques, Op. 40: No. 8. Scherzando
10 Pensees Lyriques, Op. 40: No. 9. Petite Serenade
10 Pensees Lyriques, Op. 40: No. 10. Polonaise (Alla Polacca)
Kyllikki, Op. 41: No. 1. Largamente - Allegro
6 Impromptus, Op. 5: Impromptu No. 1 in G Minor
6 Impromptus, Op. 5: Impromptu No. 2 in G Minor
6 Impromptus, Op. 5: Impromptu No. 3 in A Minor
{"copyright_id":"0x1bf39726369a7364b75312f703ad7ee987817817b474628058e8a10ebdea3d52","isrc":"HKI199807903","name":"6 Impromptus, Op. 5: Impromptu No. 3 in A Minor","registered_at":"2026-06-29T07:09:37Z","spotify_id":"0XzgdOhEulB0WbKJuxaHom","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf39726369a7364b75312f703ad7ee987817817b474628058e8a10ebdea3d52. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0XzgdOhEulB0WbKJuxaHom.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0XzgdOhEulB0WbKJuxaHom.
6 Impromptus, Op. 5: Impromptu No. 4 in E Minor
6 Impromptus, Op. 5: Impromptu No. 6 in E Major
{"copyright_id":"0x68c332be6879660422393e337e4888ea69d6abef0aebcd05e1b3a0fc5407ce81","isrc":"HKI199807906","name":"6 Impromptus, Op. 5: Impromptu No. 6 in E Major","registered_at":"2026-06-29T07:08:59Z","spotify_id":"3Y6IfwS0GHmP9PwVVhKXX1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c332be6879660422393e337e4888ea69d6abef0aebcd05e1b3a0fc5407ce81. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Y6IfwS0GHmP9PwVVhKXX1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Y6IfwS0GHmP9PwVVhKXX1.
Piano Sonata in F Major, Op. 12: Allegro molto
Piano Sonata in F Major, Op. 12: Andantino-Presto
Piano Sonata in F Major, Op. 12: Vivacissimo
Preludes, Op. 28, No. 1-24: No. 2 in A Minor
Preludes, Op. 28, No. 1-24: No. 4 in E Minor
Preludes, Op. 28, No. 1-24: No. 6 in B Minor
Preludes, Op. 28, No. 1-24: No. 8 in F-Sharp Minor
Preludes, Op. 28, No. 1-24: No. 10 in C-Sharp Minor
Preludes, Op. 28, No. 1-24: No. 12 in G-Sharp Minor
Preludes, Op. 28, No. 1-24: No. 13 in F-Sharp
Preludes, Op. 28, No. 1-24: No. 14 in E-Flat Minor
Preludes, Op. 28, No. 1-24: No. 15 in D-Flat
Preludes, Op. 28, No. 1-24: No. 16 in B-Flat Minor
Preludes, Op. 28, No. 1-24: No. 17 in A-Flat
Preludes, Op. 28, No. 1-24: No. 18 in F Minor
Preludes, Op. 28, No. 1-24: No. 19 in E-Flat
Preludes, Op. 28, No. 1-24: No. 20 in C Minor
Preludes, Op. 28, No. 1-24: No. 21 in B-Flat
Preludes, Op. 28, No. 1-24: No. 22 in G Minor
Preludes, Op. 28, No. 1-24: No. 24 in D Minor
Mozart: Concerto for Two Pianos & Sinfonia Concertante
Concerto for 2 Pianos and Orchestra, K. 365: I. Allegro
Concerto for 2 Pianos and Orchestra, K. 365: II. Andante
Concerto for 2 Pianos and Orchestra, K. 365: III. Rondeau. Allegro
Sinfonia concertante for Violin and Viola, K. 364: I. Allegro maestoso
Sinfonia concertante for Violin and Viola, K. 364: II. Andante
Sinfonia concertante for Violin and Viola, K. 364: III. Presto
50 Folk-Tunes from Hardanger, Op. 150: No. 38: The Father of the Child
50 Folk-Tunes from Hardanger, Op. 150: No. 39: Weekend Visit
50 Folk-Tunes from Hardanger, Op. 150: No. 40: The Lad with Silver Buttons
50 Folk-Tunes from Hardanger, Op. 150: No. 41a: Stava Church Chant I
50 Folk-Tunes from Hardanger, Op. 150: No. 41b: Stava Church Chant II
50 Folk-Tunes from Hardanger, Op. 150: No. 42: Homesickness
50 Folk-Tunes from Hardanger, Op. 150: No. 43: The Mountain-Man's Girl
50 Folk-Tunes from Hardanger, Op. 150: No. 44: Great Grandfather's Tune
50 Folk-Tunes from Hardanger, Op. 150: No. 45: Christmas Song
50 Folk-Tunes from Hardanger, Op. 150: No. 46: Alas, my Girl
50 Folk-Tunes from Hardanger, Op. 150: No. 47: Folk Song by Wise Folk about Some Folk
50 Folk-Tunes from Hardanger, Op. 150: No. 48: The Hasty Wedding
50 Folk-Tunes from Hardanger, Op. 150: No. 49: Tasting the Brew
50 Folk-Tunes from Hardanger, Op. 150: No. 50: Hardanger Ale
12 2-Part Inventions, Op. 2: F sharp Dorian
12 2-Part Inventions, Op. 2: A flat Lydian
12 2-Part Inventions, Op. 2: A sharp Phrygian
12 2-Part Inventions, Op. 2: C sharp Phrygian
12 2-Part Inventions, Op. 2: E flat Dorian
3-Part Invention in B flat Dorian, Op. 3, No. 5: Three-part Invention in B flat Dorian, Op. 3, No. 5
4-Part Invention in A Major Phrygian, Op. 4, No. 3: Four-part Invention in A Major Phrygian, Op. 4, No. 3
100 Folk-tunes from Hardanger, Op. 151: Suite No. 5, "Troll tunes": Folk-Tune from Hardanger No. 73
50 Folk-Tunes from Hardanger, Op. 150: Welcome with Honour
50 Folk-Tunes from Hardanger, Op. 150: Flute Sound
50 Folk-Tunes from Hardanger, Op. 150: A-wooing
50 Folk-Tunes from Hardanger, Op. 150: The Song Ends Just in Time
50 Folk-Tunes from Hardanger, Op. 150: On to the Bridal Farm
50 Folk-Tunes from Hardanger, Op. 150: Welcome to the Bridal Farm
50 Folk-Tunes from Hardanger, Op. 150: The Crown Bride
50 Folk-Tunes from Hardanger, Op. 150: The Spoiled Bridal Drink
50 Folk-Tunes from Hardanger, Op. 150: The Most Beautiful Song on Earth
50 Folk-Tunes from Hardanger, Op. 150: What Beer!
50 Folk-Tunes from Hardanger, Op. 150: God's Goodness and God's Greatness
50 Folk-Tunes from Hardanger, Op. 150: The Boaster's Ballad
50 Folk-Tunes from Hardanger, Op. 150: The Bonneted Wife
50 Folk-Tunes from Hardanger, Op. 150: The Pranksters
50 Folk-Tunes from Hardanger, Op. 150: Hardanger Fiddle-Song
50 Folk-Tunes from Hardanger, Op. 150: Sad Song of an Empty Brandy Keg
50 Folk-Tunes from Hardanger, Op. 150: Hush-a-bye Baby
50 Folk-Tunes from Hardanger, Op. 150: Children's Tune
50 Folk-Tunes from Hardanger, Op. 150: Fare Thee Well
50 Folk-Tunes from Hardanger, Op. 150: The Glacier Is Silent
50 Folk-Tunes from Hardanger, Op. 150: The Cattle
50 Folk-Tunes from Hardanger, Op. 150: Towards the Tveitt Hill Farm
50 Folk-Tunes from Hardanger, Op. 150: An Old Mountain Cabin
50 Folk-Tunes from Hardanger, Op. 150: The Call of the Shepherd's Horn
50 Folk-Tunes from Hardanger, Op. 150: The Call of the Dairy-Maid
50 Folk-Tunes from Hardanger, Op. 150: Cloudberries and Moorberries
50 Folk-Tunes from Hardanger, Op. 150: Langeleik Tune
50 Folk-Tunes from Hardanger, Op. 150: Autumn Evening at the Watermill
50 Folk-Tunes from Hardanger, Op. 150: Fire in the Beard
50 Folk-Tunes from Hardanger, Op. 150: Turid's Ballad
50 Folk-Tunes from Hardanger, Op. 150: Winter Weather in the Mountains
50 Folk-Tunes from Hardanger, Op. 150: Tears and Laughter for a Boat
50 Folk-Tunes from Hardanger, Op. 150: Rich Ragna
50 Folk-Tunes from Hardanger, Op. 150: Nymphs' Hill
50 Folk-Tunes from Hardanger, Op. 150: The Hardanger Fiddle without Strings
50 Folk-Tunes from Hardanger, Op. 150: The Long, Long Winter Night
Seven Songs, Op.13 - Under Stransens Granar
Seven Songs, Op.13 - Våren Flyktar Hastigt
From Seven Songs, Op.17 - I Se'n Har Jag Ej Frågat Mera
From Seven Songs, Op.17 - Lastu Lainehilla
Six Songs, Op.36 - Men Min Fågel Märks Dock Icke
Six Songs, Op.36 - Bollspelet Vid Trianon
Five Songs, Op.37 - Flickan Kom Ifrån Sin Älsklings Möte
From Six Songs, Op.50 - Im Feld Ein Mädchen Singt
From Six Songs, Op.90 - Hvem Styrde Hit Din Väg?
Grieg: Cello Sonata, Op. 36 / Piano Sonata, Op. 7
Piano Sonata in E Minor, Op. 7: I. Allegro moderato
Piano Sonata in E Minor, Op. 7: II. Andante molto
Piano Sonata in E Minor, Op. 7: III. Alla menuetto
Piano Sonata in E Minor, Op. 7: IV. Finale
Intermezzo in A Minor for Cello and Piano: Allegretto tranquillo
Cello Sonata in A Minor, Op. 36: I. Allegro agitato
Cello Sonata in A Minor, Op. 36: III. Allegro - Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549799b2a5082f284b1190189a9ed3ef7e0862e6973512f5b78c7c4aece726aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zsBo0bTanSPXVJKEcgkwV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zsBo0bTanSPXVJKEcgkwV.
Shea: The Arctic Suite, V. Sea Ice Melting (Violin-Piano Version)
The Arctic Suite: V. Sea Ice Melting (Violin-Piano Version)
{"copyright_id":"0x55cd6eeac8762689c36952638a6d3b26ddd4937fe39d84912d4d11991162ea92","isrc":"DEE862301603","name":"The Arctic Suite: V. Sea Ice Melting (Violin-Piano Version)","registered_at":"2026-06-24T08:17:42Z","spotify_id":"0PBKGEFeElOX88OSYd7VpZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cd6eeac8762689c36952638a6d3b26ddd4937fe39d84912d4d11991162ea92. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0PBKGEFeElOX88OSYd7VpZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0PBKGEFeElOX88OSYd7VpZ.
Pavane, Op. 50 (Arr. for Violin, Cello and Piano by Ehsan Mohagheghi Fard)
{"copyright_id":"0x2285f4d4bd264289d939c6c36cacaf90984ad791fcd5f867caa01d52588cc0b2","isrc":"DEE862301157","name":"Pavane, Op. 50 (Arr. for Violin, Cello and Piano by Ehsan Mohagheghi Fard)","registered_at":"2026-06-06T22:38:23Z","spotify_id":"0hVl0ef4yDfvp19ymr53zi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2285f4d4bd264289d939c6c36cacaf90984ad791fcd5f867caa01d52588cc0b2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0hVl0ef4yDfvp19ymr53zi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0hVl0ef4yDfvp19ymr53zi.
Adam: Cantique de Noël, Andante Maestoso
{"copyright_id":"0x555603d995cf9b956c85de29b07bc2bccb31af2b4d9942e777f9244d0380c193","isrc":"DEE862301605","name":"Cantique de Noël: Andante Maestoso","registered_at":"2026-06-26T16:04:27Z","spotify_id":"0MBTdP6l1nrl3IUN4UhoPh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555603d995cf9b956c85de29b07bc2bccb31af2b4d9942e777f9244d0380c193. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0MBTdP6l1nrl3IUN4UhoPh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0MBTdP6l1nrl3IUN4UhoPh.
Grieg: The Mountain Maid, Op. 67: No. 6, Kidlings' Dance (Version for Trumpet and Piano)
{"copyright_id":"0x522d79f1a2576163791ed245897b36c4d4246ad7330aed2c81622c3b81c062e4","isrc":"GBAYC1103177","name":"Grieg: The Mountain Maid, Op. 67: No. 6, Kidlings' Dance (Version for Trumpet and Piano)","registered_at":"2026-06-24T11:36:22Z","spotify_id":"31SWl7v4yrTgnymokockMt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522d79f1a2576163791ed245897b36c4d4246ad7330aed2c81622c3b81c062e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/31SWl7v4yrTgnymokockMt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31SWl7v4yrTgnymokockMt.
Easy-Listening Piano Classics: Romantic Expressions
The Essential Royal Scottish National Orchestra