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 0x3119323f405bb1d84c53c5842a72c764fd287d3889b8e1c713e186c1dbc226e7. 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/92b5ec2a-5c04-4326-be08-f9afe0fe5335.json and https://artists.proofprofile.net/proofs/artist/92b5ec2a-5c04-4326-be08-f9afe0fe5335.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rachmaninov: 14 Romances, Op. 34: No. 14, Vocalise
Handel: Il trionfo del Tempo e del Disinganno, HWV 46a, Pt. 2: Aria. "Lascia la spina cogli la rosa" (Piacere)
Delibes: Lakmé, Act 1 Scene 4: No. 2, Duetto, "Dôme épais, le jasmin" (Lakmé, Mallika)
Orchestre Du Theatre National De L'Opera Comique
Barber: Agnus Dei (After Adagio for Strings, Op. 11)
Handel: Dixit Dominus, HWV 232: VII. De torrente in via bibet
Berlioz: Les Nuits d'été, Op. 7, H 81b: II. Le spectre de la rose, H 83b
Fauré: Pavane, Op. 50 (Version with Chorus)
Vivaldi: Giustino, RV 717, Act 1: "Vedrò con mio diletto" (Anastasio)
Les Pêcheurs de perles: A cette voix quel trouble... Je crois entendre encore (Nadir)
Mozart: Cosi fan tutte, K. 588, Act 1: "Soave sia il vento" (Fiordiligi, Dorabella, Don Alfonso)
Monteverdi: Hor che’l ciel e la terra e’l vento tace, SV 147 (No. 2 from "Madrigals, Book 8")
Glière: Concerto for Soprano Coloratura, Op. 82: I. Andante
Schubert: Du bist die Ruh, Op. 59 No. 3, D. 776
Purcell: Oedipus, Z. 583: No. 2, Song. "Musick for a While" (Version for Voice and Guitar)
Brahms: 5 Songs, Op. 104: III. Letztes Glück
Handel: Messiah, HWV 56, Pt. 1, Scene 1: Accompagnato. "Comfort Ye My People"
Catalani: La Wally, Act 1: Aria. "Ebben? Ne andrò lontana" (La Wally)
Orchestre Philharmonique de Radio France
Handel: Serse, HWV 40, Act 1: Largo. "Ombra mai fù" (Serse)
Ravel: Shéhérazade, M. 41: III. L'indifférent
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 10, Choral. "Jesus bleibet meine Freude"
Fauré: 3 Mélodies, Op. 7: No. 1, Après un rêve
Verdi: La forza del destino, Act 2 Scene 10: Finale, "La Vergine degli Angeli" (Leonora, Chorus)
Bach, JS: Mass in B Minor, BWV 232: Dona nobis pacem
Puccini: Gianni Schicchi: "O mio babbino caro" (Lauretta)
Puccini: Madama Butterfly, Act 2 Scene 1: Intermezzo. Coro a bocca chiusa
Chorus of the Royal Opera House, Covent Garden
Orchestra of the Royal Opera House, Covent Garden
Schubert: Gesang der Geister über den Wassern, Op. Posth. 167, D. 714
Canteloube: Chants d'Auvergne, Book 1: No. 2, Baïlèro
Grieg: Peer Gynt, Op. 23, Act 4: No. 18, Solveig's Song
Fauré: Requiem, Op. 48: VII. In Paradisum
Quatre poèmes hindous: Lahore - Heinrich Heine
Mahler: Lieder eines fahrenden Gesellen: No. 1, Wenn mein Schatz Hochzeit macht
Poulenc: 4 Motets pour le temps de Noël, FP 152: No. 1, O magnum mysterium
Debussy: Chansons de Bilitis, Musique de scène, CD 102, L. 96: XII. La pluie du matin
Strauss, R: 5 Lieder, Op. 41: No. 1, Wiegenlied (Version with Orchestra)
Stravinsky: Pulcinella: II. Serenata. “Mentre l’erbetta”
Strauss, R: 8 Lieder, Op. 49: No. 1, Waldseligkeit (Version with Orchestra)
Kondakion de l'Office de la Nativité (Byzantine Melkite tradition): Al-yawma-l-batûl
Orff: Carmina Burana, Pt. 3, Cour d'amours: In trutina
Villa-Lobos: Bachianas Brasileiras No. 5 for Soprano and 8 Cellos, W. 389: I. Aria in A Minor (Cantilena. Adagio)
Berceuse de Gráinne pour Diarmait (After Vivaldi's Nisi Dominus, RV 608)
Rossini: Petite messe solennelle: I. Kyrie
Kathisme de l'Office de la Nativité (Byzantine Melkite tradition): Li-mâdhâ ta'jabina yâ Mariamu?
Bach, JS: Mass in B Minor, BWV 232: Qui tollis peccata mundi
Verdi: Messa da Requiem: VII. Libera me domine. "Requiem aeternam"
Bach, JS: Ich habe genug, BWV 82: No. 1, Aria. "Ich habe genug"
Verdi: Quattro pezzi sacri: No. 1, Ave Maria
Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 68, Chor. "Wir setzen uns mit Tränen nieder"
Gounod: Messe solennelle de Sainte Cécile: VI. Benedictus
Nouvel Orchestre Philharmonique de Radio France
Bomtempo: Requiem to the memory of Luiz Vaz de Camos, Op. 23: Agnus Dei. "Requiem aeternam"
Bach, JS: Johannes-Passion, BWV 245, Pt. 1: No. 1, Chor. "Herr, unser Herrscher"
Poulenc: Stabat Mater, FP 148: I. Stabat mater dolorosa
Charpentier: Psaume XXVI. "Dominus illumination mea" (D'après le Dixit Dominus, H. 226)
Handel: Messiah, HWV 56, Pt. 2, Scene 7: Chorus. "Hallelujah"
Campra: Requiem: I. Introït. "Requiem aeternam"
Vivaldi: Stabat Mater in F Minor, RV 621: I. Stabat Mater dolorosa
Handel: Coronation Anthem No. 1, HWV 258 "Zadok the Priest"
Rachmaninov: Vespers, Op. 37: V. Nyne otpushchayeshi
Vivaldi: Nisi Dominus in G Minor, RV 608: IV. Cum dederit
Vivaldi: Magnificat in G Minor, RV 610b: III. Et misericordia
Mozart: Great Mass in C Minor, K. 427: I. Kyrie
Vivaldi: Gloria in D Major, RV 589: I. Gloria in excelsis Deo
Mozart: Vesperae solennes de confessore, K. 339: V. Laudate Dominum
Academy of St Martin in the Fields Chorus
Pergolesi: Stabat Mater: I. Stabat mater dolorosa
Haydn: Mass in C Major, Hob. XXII:5 "Sanctæ Cæciliæ": Crucifixus
Scarlatti, A: Stabat Mater: I. Stabat Mater dolorosa
Haydn: Mass in C Major, Hob. XXII:9 "Paukenmesse": Agnus Dei
Monteverdi: Vespro della Beata Vergine, SV 206: I. Domine ad adiuvandum me festina - Domine ad adiuvandum
Mendelssohn: Psalm XLII, Op. 42, MWV A15 "Wie der Hirsch schreit": No. 1, Chor. "Wie der Hirsch schreit"
Schubert: Mass in E-Flat Major, D. 950: Sanctus
Schubert / Arr. Challan: Ave Maria, Op. 52 No. 6, D. 839 (Orchestral Version)
Palestrina: Missarum liber secundus: No. 7, Missa "Papae Marcelli": VII. Agnus Dei II
Handel: Solomon, HWV 67, Act 3: Sinfonia "The Arrival of the Queen of Sheba"
Mascagni: Cavalleria Rusticana: Intermezzo
Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
Rachmaninov: Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (Excerpt)
Bach, JS: Wachet auf, ruft uns die Stimme, BWV 140: No. 1, Chor. "Wachet auf, ruft uns die Stimme"
Bach, JS: Toccata and Fugue in D Minor, BWV 565: Toccata
Grieg: Peer Gynt, Op. 23, Act 4: No. 13, Prelude. Morning Mood
Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
Shostakovich / Arr. Atovmyan: The Gadfly, Suite Op. 97a: No. 8 Romance
Schubert: Deutsche Messe, D. 872: No. 5, Zum Sanctus
Beethoven: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
Franck / Arr. Sandré: Mass, Op. 12, FWV 61: Panis Angelicus
Tchaikovsky: 1812 Overture in E-Flat Major, Op. 49 (Excerpt)
Rimsky-Korsakov: Scheherazade, Op. 35: II. The Kalendar Prince (Excerpt)
Berlioz: L'enfance du Christ, Op. 25, H. 130, Part 2: The Shepherds' Farewell
Orchestre De La Société Des Concerts Du Conservatoire
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto - "O Freunde, nicht diese Töne!" (Ode to Joy) [Excerpt]
Grieg: Piano Concerto in A Minor, Op. 16: I. Allegro molto moderato (Excerpt)
Borodin: Prince Igor, Act II: Polovtsian Dances (Excerpt)
Sibelius: Karelia Suite, Op. 11: III. Alla marcia
Khachaturian: Spartacus Suite No. 2: I. Adagio of Spartacus and Phrygia
Holst: The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity (Excerpt)
Tchaikovsky: Romeo and Juliet, Fantasy Overture (Excerpt)
Tchaikovsky: Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito (Excerpt)
Beethoven: Symphony No. 7 in A Major, Op. 92: II. Allegretto (Excerpt)
Bach, JS: Concerto for Two Violins in D Minor, BWV 1043: II. Largo ma non tanto
Verdi: Aïda, Act 2: "Gloria all'Egitto, ad Iside" (Chorus) - Triumphal March
Williams: Main Theme (From "Schindler's List")
Handel: Messiah, HWV 56, Pt. 3, Scene 1: Aria. "I Know That My Redeemer Liveth"
Prokofiev: Suite No. 2 from Romeo and Juliet, Op. 64ter: I. The Montagues and Capulets (Excerpt)
Tchaikovsky: The Nutcracker, Op. 71, Act II: No. 12e, Divertissement. Dance of the Reed-Flutes
Haydn: The Creation, Hob. XXI:2, Pt. 1: Trio and Chorus. "The Heavens Are Telling" (Chorus, Gabriel, Uriel, Raphael)
Beethoven: Symphony No. 6 in F Major, Op. 68 "Pastoral": V. Hirtengesang. Frohe und dankbare Gefühle nach dem Sturm. Allegretto
Mozart / Compl. Beyer: Requiem in D Minor, K. 626: VIII. Lacrimosa
Rachmaninov: Piano Concerto No. 3 in D Minor, Op. 30: I. Allegro ma non tanto (Excerpt)
Saint-Saëns: Symphony No. 3 in C Minor, Op. 78 "Organ Symphony": II. (b) Maestoso - Allegro
Thou Knowest Lord The Secret Of Our Hearts
Introit - Gaudeamus omnes in Domino (mode I)
Anonymous: Kyrie: 'Omnipotens Pater' (mode VIII)
Anonymous: Chapter: Ecclesiasticus 24:17; Responsory: Stirps Jesse (mode II)
Anonymous: Hymn: Ave maris stella (mode I); Virsicle: Sancta Dei genitrix
Magnificat Antiphon: Nativitas tua (mode I)
Anonymous: Magnificat; Magnificat Antiphon: Nativitas tua
Prolog: Lectio Isaiae Prophetae (60, 1-6)
Magnificat-Antiphon (Greg.): Tribus Miraculis
Transitorium (Ambros.): Hodie Caelesti Sponso
Antiphon (Greg.): Hodie Nobis Beata Illuxit
Responsorium Prolixum (Greg.): Illuminare Ierusalem
Antiphon Mit Psalm 71 (V.10-13, 18f): Stella Ista
Ingressa (Ambros.): Civitas Non Eget Sole
Gloria Im Tonus Festivus (Ambros.): Gloria
Hallelujah (Ambros.): Puer Natus Est Nobis
Symbolum (Ambros.): Credimus In Unum Deum
Communio Mit Psalm 71 (V.1-3, 7): Vidimus Stellam Eius
Responsorium Breve (Greg.): Omnes De Saba Venient
Transitorium (Ambros.): Te Laudamus Domine Omnipotens
Puer natus est nobis - Introito (Modo VII)
Holy Week - Hymn Of The Washing Of The Feet On Maundy Thursday : Ubi Caritas
Choeur Du Bec Hellouin - Philibert Zobel
Anonymous: Antiphonal and Psalm 99, Modo II, "Genuit puerpera Regem"
Holy Week - Third Responsory At Matins On Maundy Thursday : Ecce Vidimus Eum
Anonymous: Secuencia, Modo VII and VIII, "Ave mundi spes Maria"
Holy Week - Second Lamentation At Matins On Wednesday : Lamed
Anonymous: Sixth Responsory at Matins on Holy Saturday, "Ecce quomodo moritur justus"
Veni Creator Spiritus - Himno (Modo VIII)
Coro De Monjes Del Monasterio De Silos/Ismael Fernandez De La Cuesta
Escolania Y Schola De La Abadia De Santa Cruz Del Valle De Los Caidos
Hosanna Filio David - Antiphonal (Modo VII)
Pueri Hebraeorum Portantes. Antífona (Modo I)
Anonymous: Pueri hebraeorum vestimenta (Antiphon, Modo I)
Anonymous: Himno, Modo I, "Gloria, laus et honor"
Ingrediente Domino (Responso Modo II) - 1992 Remastered Version
Anonymous: Puer natus in Bethlehem. Ritmo (Modo I)
Anonymous: Christus factus est (Gradual, Modo V)
Alleluia, Dies Santificatus (Modo II) - 1999 Remastered Version
Improperium - Ofertorio (Modo VIII) - 1999 Remastered Version
Christus Natus. Invitatorio (Modo IV) - 1981 Remastered Version
Pater, Si Non Potest Hic (Comunión Modo VIII) - 1992 Remastered Version
Verbum Caro Factum Est. Responsorio (Modo VIII) - 1999 Remastered Version
De Ore Leonis (Responsorio Breve) - 1992 Remastered Version
Traditor Autem - Benedictus - Antifona - Cantico
Roman de Fauvel (attr. Gervais du Bus) (2000 Digital Remaster), Les noces de l'âne Fourbe à Paris, avec la passion de la vaine gloire: 16. Danse royale (instrumental)
Jean Bollery/Studio der Frühen Musik/Thomas Binkley
Michel Piguet/Ricercare-Ensemblefür Alte Music Zürich
O quanta qualia (hymnus) - 2000 Remastered Version
Non Perch' i' speri, donna (ballata) - 2000 Remastered Version
Condesa de Dia: Ab joi et ab joven m'apais
L'agonie du Languedoc - Razos es qu'ieu m'esbaudei - 2000 Remastered Version
Indescort, diminution sur la chanson "A discort son Desir et Esperance"
Messe de la Nativité: Trope: Gaudeamus hodie - Introït Puer natus est nobis
L'amoureuse flour d'esté/En l'estat d'amere tristour/sicut fenum arui (motet)
Messe de la Nativité: Organum: Graduel Viderunt omnes
Se vrai secours briefvement ne m'eslye (ballade)
Messe de la Nativité: Antienne Ecce annuntio vobis
de l'Escurel: A vous, douce debonnaire (Rondeau)
Messe de la Nativité: Trope: Qui es sine principio - Offertoire Tui sunt celi
De Machaut: Hareu! hareu! le feu / Helas! ou sera pris confors
Messe de la Nativité: Trope: Radix lesse virga - Communion Viderunt omnes
Estampie - Istanpitta (2000 Digital Remaster): Istanpitta Gaetta
De Machaut: Trop plus est belle / Blauté paree / Je ne suis mie certeins
Siete canciones de amigo (2000 Digital Remaster): Ay deus se sab ora meu amigo
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Prolog, Lectio Isaiae Prophetae (60, 1-6)
Schola Cantorum Coloniensis/Dr. Gabriel Maria Steinschulte
Anonymous: Rosary: Alma Redemptoris Mater (Antiphona Simplex, Gregorian)
Schola Cantorum Coloniensis/Dr. Gabriel Maria Steinschulte/Albert Richenhagen/Theo Brandmüller
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Magnificat-Antiphon, "Tribus miraculis" (Gregorian)
Anonymous: Rosary, Introduction: Alma Redemptoris Mater (Antiphona Solemnis, Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Transitorium, "Hodie caelesti sponso" (Ambrosian)
Anonymous: Rosary, Pt. 1: Joyful Mysteries - I. Offertorium "Ave Maria, gratia plena"
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Hymnus, "Hostis Herodes impie" (Gregorian)
Richenhagen, Albert: Rosary, Pt. 1: Joyful Mysteries, 2. Organ-Improvisation 1
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Antiphon, "Hodie nobis Beata illuxit" (Gregorian)
Anonymous: Rosary, Pt. 1: Joyful Mysteries, 3. Communio, "Beatam me dicent" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Responsorium prolixum, "Illuminare Ierusalem" (Gregorian)
Richenhagen, Albert: Rosary, Pt. 1: Joyful Mysteries, 4. Organ-Improvisation 2
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Antiphon with Psalm 71, "Stella ista" (v.10-13, 18f)
Anonymous: Rosary, Pt. 1: Joyful Mysteries, 5. Communio, "In splendoribus sanctorum" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Introitus, "Ecce advenit" (Gregorian)
Richenhagen, Albert: Rosary, Pt. 1: Joyful Mysteries, 6. Organ-Improvisation 3
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Ingressa, "Civitas non eget sole" (Ambrosian)
Anonymous: Rosary, Pt. 1: Joyful Mysteries, 7. Antiphona, "Lumen ad revelationem gentium" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Gloria im tonus festivus, "Gloria" (Ambrosian)
Richenhagen, Albert: Rosary, Pt. 1: Joyful Mysteries, 8. Organ-Improvisation 4
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Graduale, "Omnes de Saba venient" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Alleluia, "Vidimus stellam eius" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Hallelujah, "Puer natus est nobis" (Ambrosian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Symbolum, "Credimus in unum Deum" (Ambrosian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Offertorium including Verses from Codex Einsiedeln 121, "Reges Tharsis" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Communio with Psalm 71 (V.1-3, 7), "Vidimus stellam eius"
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Responsorium breve, "Omnes de Saba venient" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Magnificat-Antiphon, "Videntes stellam Magi" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Psallenda, "Videntes stellam Magi" (Ambrosian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Psallenda, "Apparuit in mundo" (Ambrosian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Antiphon, "O qualem gloriam" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Magnificat-Antiphon, "Admoniti Magi" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Responsorium, "Tria sunt munera" (Gregorian)
Anonymous: Gregorian and Ambrosian Music for the Feast of the Three Magi: Transitorium, "Te laudamus Domine omnipotens" (Ambrosian)