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 0xfa631d56b2d8ec496d640257763e49795431763fcf8568f69f9b3278a3bbc47d. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c98904e4-f2ea-4d44-9279-4c558237b51a.json and https://artists.proofprofile.net/proofs/artist/c98904e4-f2ea-4d44-9279-4c558237b51a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trio for Clarinet, Viola and Piano: Intrada (I)
Trio for Clarinet, Viola and Piano: Passacaglia notturna (II)
Trio for Clarinet, Viola and Piano: Comodo (III)
Concerto for String Orchestra / Musique pour l'esprit en deuil
Concerto for String Orchestra: I. Canto appassionato - Energico alla breve
Concerto for String Orchestra: II. Rondo mediterraneo - Presto
Concerto for String Orchestra: III. Ciaccona epica - Grazioso e con moto
Songs of Love and Eternity: These Are the Days When Birds Come Back
Songs of Love and Eternity: Wild Nights!
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 0x59d35f322f195ef1868d9292f7810d41f0d97b9f9a6496184c46ce8685817951. 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/QMFMG1575285.
Songs of Love and Eternity: Heart, We Will Forger Him!
Songs of Love and Eternity: The Wind Tapped Like a Tried Man
Songs of Love and Eternity: To Make a Prairie It Takes a Clover
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Three Poems by W.H. Auden: If I Could Tell You
Three Poems by W.H. Auden: Warm Are The Still and Lucky Miles
Sonata concertante / Sonata per violino e pianoforte / Arcana
Sonata concertante: III. Lento - Allegrissimo
Sonata per violino e pianoforte: I. Allegro
Sonata per violino e pianoforte: II. Largo
Sonata per violino e pianoforte: III. Allegro moderato - Allegro molto
Nostalgies / Six épigraphes antiques / Sinfonia per dieci strumenti
Nostalgies: III. République Argentina - La Plata
Six épigraphes antiques, L. 131: I. Pour invoquer Pan, dieu du vent d'été
Six épigraphes antiques, L. 131: II. Pour un tombeau sans nom
Six épigraphes antiques, L. 131: III. Pour que la nuit soit propice
Six épigraphes antiques, L. 131: IV. Pour la danseuse aux crotales
Six épigraphes antiques, L. 131: : V. Pour I'Egyptienne
Six épigraphes antiques, L. 131: VI. Pour remercier la pluie au matin
Sinfonia per dieci strumenti: I. Ritmo teso in tempo moderato
Sinfonia per dieci strumenti: II. Passaggio
Sinfonia per dieci strumenti: III. Lento
Sinfonia per dieci strumenti: IV. Vivo e leggiro
Trois poèmes de Tristan Corbière: Rondel
Trois poèmes de Tristan Corbière: Petit mort pour rire
Trois poèmes de Tristan Corbière: Do, l'enfant do...
La vie du Sieur de Dalibray: Avis à l'auditeur: Je ne sçay si ces vers...
La vie du Sieur de Dalibray: Tremblez, tremblez, fiere Sylvie...
La vie du Sieur de Dalibray: S'il faut, ô miserable Amant...
La vie du Sieur de Dalibray: Il est passé le temps...
La vie du Sieur de Dalibray: Maintenant qu'un air doux...
La vie du Sieur de Dalibray: Toy, qui pour t'elever...
La vie du Sieur de Dalibray: Je ne t'impute point l'amour...
La vie du Sieur de Dalibray: Songe, songe Mortel...
Chants de désir: On voit mourir toute chose animee...
Chants de désir: Tout aussi tot que je commence à prendre...
Chants de désir: Tant que mes yeus pourront larmes espandre...
I Taste a Liquor Never Brewed: I Taste a Liquor Never Brewed (1955)
Le vrai visage de la paix: Le vrai visage de la paix (1953,rev.1957)
Sonata concertante for Cello and Piano: Allegro agitato
Sonata concertante for Cello and Piano: Largo
Sonata concertante for Cello and Piano: Lento
Sonata per flauto solo: Andante con grazia
Sonata per flauto solo: Molto mosso e grazioso
Sonata for Clarinet Solo: Molto tranquillo
Sonata for Flute and Piano: In moto ostinato, con violenza
Rudolf Escher: Sonata Concertante, Sonata Per Violino E Pianoforte & Arcana
Nostalgies (Levet): I. Possession Francaise
Nostalgies (Levet): II. Côte d'Azur-Nice
Nostalgies (Levet): III. République Argentina - La Plata
Six Epigraphes antiques, L. 131: I. Pour invoquer Pan, dieu du vent d'été
Six Epigraphes antiques, L. 131: II. Pour un tombeau sans nom
Six Epigraphes antiques, L. 131: III. Pour que la nuit soit propice
Six Epigraphes antiques, L. 131: IV. Pour la danseuse aux crotales
Six Epigraphes antiques, L. 131: : V. Pour I'Egyptienne
Six Epigraphes antiques, L. 131: VI. Pour remercier la pluie au matin
Sinfonia per dieci strumenti: I. [Ritmo teso in tempo moderato]
Sinfonia per dieci strumenti: III. [Lento]
Sinfonia per dieci strumenti: IV. [Vivo e leggiro]
Concerto voor Strijkorkest: I. Canto appassionato - Energico alla breve
Concerto voor Strijkorkest: II. Rondo mediterraneo - Presto
Concerto voor Strijkorkest: III. Ciaccona epica - Grazioso e con moto
Escher: Le Tombeau De Ravel / Six Épigraphes Antiques / Largo from Sinfonia in Memoriam Maurice Ravel / Hymne Du Grand Meaulnes
Le Tombeau de Ravel: Pavane, Pour une maison déserte
Six epigraphes antiques: Pour invoquer Pan, dieu du vent d'ete
Six epigraphes antiques: Pour un tombeau sans nom
Six epigraphes antiques: Pour que la nuit soit propice
Six epigraphes antiques: Pour la danseuse aux crotales
Six epigraphes antiques: Pour l'Egyptienne
Six epigraphes antiques: Pour remercier la pluie
Largo from Sinfonia in memoriam Maurice Ravel
Escher: Orchestral, Chamber and Choral Music
Concerto for String Orchestra: I. Canto appassionato, energico alla breve
Concerto for String Orchestra: II. Rondo mediterraneo, presto
Concerto for String Orchestra: III. Ciaconna epica, grazioso e con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463f43b96fef7fc8f3d547cd8d71cf21638622a5773d4db4f159e4014c6257e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLY332000407.
Trio for Clarinet, Viola and Piano: I. Intrada — Allegro risoluto — Passaggio
Trio for Clarinet, Viola and Piano: II. Passacaglia notturna — Passaggio
Trio for Clarinet, Viola and Piano: III. Comodo
Songs of Love and Eternity: I. These Are the Days When Birds Come Back
Songs of Love and Eternity: II. Wild Nights!
Songs of Love and Eternity: III. Heart, We Will Forget Him!
Songs of Love and Eternity: IV. The Wind Tapped Like a Tired Man
Songs of Love and Eternity: V. To Make a Prairie It Takes a Clover
Poems, First and Second Series: Taste a Liquor Never Brewed
Three Poems by W.H. Auden: I. If I Could Tell You
Three Poems by W.H. Auden: III. Warm Are the Still and Lucky Miles
Passacaglia: I. Lento e molto tranquillo
Trio d'anches: II. Rondeau, moderato - Vivace moderato
Le tombeau de Ravel, Dedicated to Alma Musica: I. Pavane, Adagio con grazia
Trio d'anches: III. Fugue, allegro deciso
Le tombeau de Ravel, Dedicated to Alma Musica: II. Air, Adagio
Le tombeau de Ravel, Dedicated to Alma Musica: III. Forlane, Allegretto
Solosonate for Cello Solo, Dedicated to Carel van Leeuwen Boomkamp: I. Allegro vivace
Le tombeau de Ravel, Dedicated to Alma Musica: IV. Sarabande, Grave
Solosonate for Cello Solo, Dedicated to Carel van Leeuwen Boomkamp: II. Andante
Le tombeau de Ravel, Dedicated to Alma Musica: V. Rigaudon, Allegro molto con spirito
Solosonate for Cello Solo, Dedicated to Carel van Leeuwen Boomkamp: III. Presto
Le tombeau de Ravel, Dedicated to Alma Musica: VI. Air, Tranquillo
Sonate for Clarinet Solo, Dedicated to Sjef and Jozien Douwes: I. Molto tranquillo
Le tombeau de Ravel, Dedicated to Alma Musica: VII. Hymne, Allegro cantabile
Sonate for Clarinet Solo, Dedicated to Sjef and Jozien Douwes: II. Vivo
Quintetto a fiati, Dedicated to the Danzi Quintet: I. Largo
Quintetto a fiati, Dedicated to the Danzi Quintet: II. Più mosso
Sonate for Clarinet Solo, Dedicated to Sjef and Jozien Douwes: III. Comodo
Quintetto a fiati, Dedicated to the Danzi Quintet: III. Largo
Sinfonia per dieci strumenti, Dedicated to Eduard Reeser: I. Ritmo teso in tempo moderato
Sinfonia per dieci strumenti, Dedicated to Eduard Reeser: II. Passaggio, lento
Trio for Clarinet, Viola and Piano, Dedicated to the Phemios Triao, Intrada, Allegro lirico: I. Allegro
Trio for Clarinet, Viola and Piano, Dedicated to the Phemios Triao, Intrada, Allegro lirico: II. Passacaglia
Sinfonia per dieci strumenti, Dedicated to Eduard Reeser: III. L'istesso tempo, lento
Sinfonia per dieci strumenti, Dedicated to Eduard Reeser: IV. Vivo e leggiero
Trio for Clarinet, Viola and Piano, Dedicated to the Phemios Triao, Intrada, Allegro lirico: III. Comodo,
Sonata per due Flauti, Op. 8: I. Allegro deciso
Sonata per due Flauti, Op. 8: II. Moderato
Sonata per due Flauti, Op. 8: III. Presto
Sonata per flauto solo, Op. 16: I. Largo
Sonata per flauto solo, Op. 16: II. Andante con grazia
Sonata per flauto solo, Op. 16: III. Molto mosso e grazioso
Sonata for Flute and Piano: III. In moto ostinato, con violenza
A Musical Anthology of the Northern Netherlands
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Flute Recital: Zukerman, Eugenia - Drattell, D. / Debussy, C. / Hoover, K. / Larsen, L. / Escher, R. / Bennett, R.R. / Bozza, E. / Honegger, A.
Een Muzikale Anthologie Der Noordelijke Nederlanden