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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b82a64ddfdc089c3417be9d01afb89182caca30b2f6c7a0463c6f1f9392d9d8. 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/7d6fa860-823a-4a56-a263-c5c3e19fe7c4.json and https://artists.proofprofile.net/proofs/artist/7d6fa860-823a-4a56-a263-c5c3e19fe7c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kolomyjec, Joanne: None But the Lonely Heart - Russian Romances
6 Songs, Op. 4, No. 3. V molchan'i nochi taynoy (In the Silence of the Secret Night) [text a. Fet]: V molchan' yi nochi tainoi [In the Silence of the Secret Night], Op. 4, No. 3
Vzoshol na nebo mesyats yasniy (the Bright Moon): Vzoshol na nyebo myesyats yasnyi [the Crescent Moon]
4 Songs, Op. 42 (text by a. Pushkin): Ryedeyet oblakov lyetuchaya gryada [the Swift Parade of Clouds], Op. 42
Morskaya tsaryevna (the Princess of the Sea)
Proshchaniye s Peterburgom (a Farewell to St. Petersburg): No. 10, Zhavoronok [the Lark]
4 Choruses, Op. 23: 4 Songs, Op. 2: No. 2, Vostochniy romans: Plenivshis' rozoy, solovey (Enslaved by the Nightingale)
4 Songs, Op. 40: O chyom v tishi nochyei (of What I Dream in the Quiet Night), Op. 40, No. 3
6 Songs, Op. 60 (text by a. Pushkin): Snovidyeniye [Dreams]
Yesli zhizn' tyebya obmanyet (If Life Deceives You)
12 Songs, Op. 21 (text by G. Galina): Zdyes' khorosho G. Galina [How Peaceful], Op. 21, No. 7
Zdyes' siryen' tak bystro uvyadayet (Here the Lilac Blossom Fades so Quickly)
Kosnulas' ya tsvetka (I Touched the Bloom Lightly)
12 Songs, Op. 21 (text by y. Beketova): 12 Songs, Op. 21: No. 5, Siren' [Lilacs]
6 Romances, Op. 6 (text by L.A. Mey): V. Otchevo? [Why?]
6 Romances, Op. 6 (text by L.A. Mey): VI. [Nyet, tolko tot, kto znal] None but the Lonely Heart
6 Romances, Op. 38 (text a.K. Tolstoy): 6 romansov [6 Romance], Op. 38, No. 2: To bylo rannyeyu vesnoi [It Happened in the Early Spring]
12 Songs, Op. 14 (text by F.I. Tyutchev): Vesenniye vody [Spring Torrents], Op. 14, No. 11
Andante spianato and Grande polonaise brillante in E-flat Major, Op. 22: I. Andante spianato
Andante spianato and Grande polonaise brillante in E-flat Major, Op. 22: II. Polonaise - Allegro molto
Piano Concerto in E Major, Op. 59: I. Moderato
Piano Concerto in E Major, Op. 59: II. Andante
Piano Concerto in E Major, Op. 59: III. Scherzo - Vivace
Piano Concerto in E Major, Op. 59: IV. Allegro deciso
Albeniz / Scarlatti / Chopin / Grieg: Salon Pieces and Encores
La jongleuse, Op. 52, No. 4: La Jongleuse, Op. 52, No. 4
10 Pieces mignonnes, Op. 77: Pantomime, Op. 77, No. 8
12 Etude caracteristique, Op. 2: Etude in F-Sharp Minor, Op. 2, No. 6
Keyboard Sonata in G Major, K.427/L.286/P.286: Presto quanto sia possible
Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2
Mazurka No. 36 in A Minor, Op. 59, No. 1
Lieder ohne Worte, Op. 67: IV. Spinnerlied
Lyric Pieces, Book 3, Op. 43: No. 1. Schmetterling (Butterfly)
Lyric Pieces, Book 9, Op. 68: V. Badnlat (Cradle Song)
4 Pieces, Op. 4: Suggestion diabolique, Op. 4, No. 4
Miscellanea, Op. 16: Nocturne in B-Flat Major, Op. 16, No. 4
Herz und Mund und Tat und Leben, BWV 147 (arr. for piano): Jesus, Joy of Man's Desiring
Andante spianato and Grande Polonaise Brillante, Op. 22: I. Andante spianato
Andante spianato and Grande Polonaise Brillante, Op. 22: II. Polonaise - Allegro molto
12 Etudes Caractéristiques, Op. 2: Etude in F-Sharp Minor, Op. 2, No. 6
Keyboard Sonata in G Major, Kk. 427: Keyboard Sonata in G Major, K.427/L.286/P.286: Presto quanto sia possible
Waltzes, Op. 64: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2
Mazurkas, Op. 59: Mazurka No. 36 in A Minor, Op. 59, No. 1
Lieder ohne Worte, Book 6, Op. 67: Lieder ohne Worte, Op. 67: IV. Spinnerlied
Lyric Pieces, Op. 43: Lyric Pieces, Book 3, Op. 43: No. 1, Schmetterling (Butterfly)
Herz und Mund und Tat und Leben, BWV 147: Jesus, Joy of Man's Desiring (Arr. For piano)
Soirées de Vienne, S. 427: Valse caprice No. 6: I. Allegro con strepito (after Franz Schubert)
Harmonies poétiques et religieuses, S. 173: III. Bénédiction de Dieu dans la solitude
Chopin - 6 Chants polonais, S.480: I. Le souhait de la jeune fille
Chopin - 6 Chants polonais, S.480: II. Printemps
Chopin - 6 Chants polonais, S.480: III. L'anneau
Chopin - 6 Chants polonais, S.480: IV. Bacchanale
Chopin - 6 Chants polonais, S.480: V. Mes Joies
Chopin - 6 Chants polonais, S.480: VI. Le Retour au pays
Faust symphonie, S. 513: II. Gretchen: Adante soave
Nocturne no. 4 en mi bémol majeur, op. 36
Images, deuxième livre, no 3, "Poissons d’or"
Préludes, premier livre, no 4, "Les sons et les parfums tournent dans l’air du soir"
Images, deuxième livre, no 1, "Reflets dans l’eau"
Suite bergamasque, no 3, "Clair de lune"
Intermezzo No. 3 in A-Flat Major, FP 118
Images, Book 2, L. 111: No. 3, Poissons d'or
Préludes, Book 1, L. 117: No. 4, Les sons et les parfums tournent dans l'air du soir
Images, Book 1, L. 110: No. 1, Reflets dans l’eau
Suite bergamasque, L. 75: No. 3, Clair de Lune
Sonatine in F-Sharp Minor, M. 40: I. Modéré
Sonatine in F-Sharp Minor, M. 40: II. Mouvement de menuet
Sonatine in F-Sharp Minor, M. 40: III. Animé
Piano Concerto in A Minor, Op. 17: II. Romanza: Andante
Polish National Radio Symphony Orchestra
Piano Concerto in A Minor, Op. 17: II. Romanza. Andante