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 0x166786f617fee1a2d457f9610ff9b8729dd3f3b01afb2f35aca0d2b412289af6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/484f66c9-6b6d-4764-b071-e9c7bbaab472.json and https://artists.proofprofile.net/proofs/artist/484f66c9-6b6d-4764-b071-e9c7bbaab472.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Allegretto Piacevole Alla Danza (In B Major) 436Hz
Allegretto Scherzando (In F Sharp Major) 436Hz
Andatino Sostenuto, Con Espressione (In D Flat Major) 436Hz
Maestoso Ed Energico (In B Flat Minor) 436Hz
Allegretto Vivace (In a Flat Major) 436Hz
24 Preludes, Op. 37 Bv 181 . 1. Moderato 436Hz
24 Preludes, Op. 37 Bv 181 . 2. Andantino Sostenuto 436Hz
24 Preludes, Op. 37 Bv 181 . 3. Andante Con Moto 436Hz
24 Preludes, Op. 37 Bv 181 . 4. Allegretto 436Hz
24 Preludes, Op. 37 Bv 181 . 5. Vivace Assai Quasi Presto 436Hz
24 Preludes, Op. 37 Bv 181 .6. Moderato, in Carattere D'un Corale 436Hz
24 Preludes, Op. 37 Bv 181 .7. Allegro Vivace 436Hz
24 Preludes, Op. 37 Bv 181 .8. Allegro Moderato 436Hz
24 Preludes, Op. 37 Bv 181 .9. Allegretto Vivace E Con Brio, in Carattere Campestre 436Hz
24 Preludes, Op. 37 Bv 181 .10. Vivace Ed Energico 436Hz
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 1
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 2
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 3
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 4
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 5
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 6
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 7
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 8
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 9
Kleine Klaviermusik, Leichte Fünfstonstücke Für Klavier No 10
Java Suite. 7. Three Dances, No. 1, Moderato
Java Suite. 8. The Gardens of Buitenzorg
Java Suite. 9. In the Streets of Old Batavia
Java Suite. 11. The Ruined Water Castle at Djokja
Symphonie Passion for Organ. 1. Le Monde Dans Lattente Du Sauveur
Symphonie Passion for Organ. 2. Nativite
Symphonie Passion for Organ. 4. Resurrection
Flores Negras Fichas Negras - Live -sinfonico
3 Fugen for Piano . Fugue in E Flat Major
6 Little Fugues for Piano. 1. Fugue in C Major
6 Little Fugues for Piano. 2. Fugue in a Minor
6 Little Fugues for Piano. 3. Fugue in a Minor
6 Little Fugues for Piano. 4. Fugue in C Major
6 Little Fugues for Piano. 5. Fugue in E Major
6 Little Fugues for Piano. 6. Fugue in B Flat Major
Drei Klavierstücke, Op. 11. 2. Sehr Langsam
Sechs Kleine Klavierstücke, Op. 19. 1. Leicht, Zart
Sechs Kleine Klavierstücke, Op. 19. 2. Langsam
Sechs Kleine Klavierstücke, Op. 19. 3. Sehr Langsame
Sechs Kleine Klavierstücke, Op. 19. 4. Rasch, Aber Leicht
Sechs Kleine Klavierstücke, Op. 19. 5. Etwas Rasch
Sechs Kleine Klavierstücke, Op. 19. 6. Sehr Langsam
La Jota Aragonesa, Caprice Espagnol, Op. 14
La Scintilla, Mazurka Sentimentale, Op. 20
Le Banjo, Esquisse Américaine for Piano, Op. 15
Ojos Criollos, Danse Cubaine - Caprice Brillant, Op. 37
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 0x0e17748820f1fd1ac167e6e0ebaeb94e6c0c4c9d2549624c336d21f231874ea5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTVM2340512.
Printemps D'amour, Mazurka, Caprice De Concert, Op. 40
Ricordati, Nocturne-Meditation-Romance, Op. 26
Souvenir De La Havane, Grande Caprice De Concert, Op. 39
Souvenir De Porto Rico, Marche Des Gibaros, Op. 31
Souvenirs D'andalousie, Caprice De Concert, Op. 22
The Last Hope, Religious Meditation, Op. 16
Fourteen Bagatelles Op 11 No 1 & No 2 436Hz
Fourteen Bagatelles Op 11 No 3 & No 5 436Hz
Roumanian Folk Dances 1. Der Tanz Mit Dem Stabe 436Hz
Roumanian Folk Dances 2. Brâul & 3. Der Stampfer 436Hz
Roumanian Folk Dances 4. Tanz Aus Butschum & 5. Rumänische Polka 436Hz
Six Dances in Bulgarian Rhythm No. 1 436Hz
Six Dances in Bulgarian Rhythm No. 2 436Hz
Six Dances in Bulgarian Rhythm No. 3 436Hz
Six Dances in Bulgarian Rhythm No. 4 436Hz
Six Dances in Bulgarian Rhythm No. 5 436Hz
Carmen No 3 Chor Der Strassenjungen 436Hz
Carmen No 4 Chor Der Zigarettenarbeiterinnen 436Hz
Cinq Morceaux De Fantasie, Op. 3. 1. Elegie in Eb Minor
Rhapsody on a Theme by Paganini Op. 43, Variations 1 - 6
Rhapsody on a Theme by Paganini Op. 43, Variations 7 - 10
Rhapsody on a Theme by Paganini Op. 43. Variations 16 - 18
Rhapsody on a Theme by Paganini Op. 43. Variations 19 - 24
Mikrokosmos Boating - Bulgarian Rhythm 436Hz
Mikrokosmos Change of Time - Chords Together and in Opposition 436Hz
Mikrokosmos Chromatic Invention - Diminished Fifth
Mikrokosmos Fourths - Free Variations 436Hz
Mikrokosmos in Lydian Mode - In Yugoslavian Mode 436Hz
Mikrokosmos Melody with Interruptions - New Hungarian Folk Song 436Hz
Mikrokosmos Sixths and Triads - Staccato 436Hz
Mikrokosmos Staccato and Legato - Syncopation 436Hz
Mikrokosmos Village Joke - Whole Tone Scales 436Hz
Kyrie 2 Fugue Sur Les Jeux Danches 432Hz
Pičces De Clavecin - Livre I Premier Ordre 8. Les Silvains 432Hz
Pičces De Clavecin - Livre I Premier Ordre 9. Les Abeilles 432Hz
Pičces De Clavecin - Livre I Premier Ordre 16. L'enchanteresse 432Hz
Pičces De Clavecin - Livre Ii 1. Les Moissonneurs 432Hz
Pičces De Clavecin - Livre Ii 2. L'étincelante Ou La Bontems 432Hz
Pičces De Clavecin - Livre Ii 4. Seconde Courante 432Hz
Pičces De Clavecin - Livre Ii 5. Les Baricades Mistérieuses 432Hz
Pičces De Clavecin - Livre Ii 9. Passacaille 432Hz
Motets Pour Un Temps De Penitence 1 Timor Et Tremor 436Hz
Motets Pour Un Temps De Penitence 2 Vinea Mea Electa 436Hz
Motets Pour Un Temps De Penitence 3 Tenebrae Factae Sunt 436Hz
Motets Pour Un Temps De Penitence 4 Tristis Est Anima Mea 436Hz
Sonata No 2 in D Minor Op 14 Mov 1 Allegro Ma Non Troppo 436Hz
Sonata No 2 in D Minor Op 14 Mov 2 Scherzo Allegro Marcato 436Hz
Sonata No 2 in D Minor Op 14 Mov 3 Andante 436Hz
Sonata No 2 in D Minor Op 14 Mov 4 Vivace 436Hz