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 0x434bb43c31a315eab20b5ce8b3b0b368da411cefc537c30ef59e06514dfeaa8a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d13d1cbf-6870-4578-a0ab-4a823a9185f3.json and https://artists.proofprofile.net/proofs/artist/d13d1cbf-6870-4578-a0ab-4a823a9185f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fading: 9 Centuries of Choral Meditation & Reflection
4 Estonian Lullabies: No. 2, It’s Time for the Little Berry to Sleep
4 Estonian Lullabies: No. 1, I Sing for My Child
4 Estonian Lullabies: No. 3, Let the Cradle Swing!
Queen of Hearts: Laments and Songs of Regret for Queens Terrestrial and Celestial
Praeter rerum seriem: I. Praeter rerum seriem
Praeter rerum seriem: II. Virtus Sancti Spiritus
Quis dabit oculis?: I. Quis dabit oculis?
Quis dabit oculis?: II. Heu nobis Domine
Quis dabit oculis?: III. Ergo ululate pueri
Nymphes, nappés / Circumdederunt me, NJE 30.6
Missa pro defunctis "Requiem": I. Introitus
Missa pro defunctis "Requiem": II. Kyrie
Missa pro defunctis "Requiem": III. Graduale
Missa pro defunctis "Requiem": IV. Offertorium
Missa pro defunctis "Requiem": V. Sanctus & Benedictus
Missa pro defunctis "Requiem": VI. Agnus Dei
Missa pro defunctis "Requiem": VII. Communio
Nymphes des bois / Requiem aeternam, NJE 29.18 "La Déploration de Johannes Ockeghem"
Amarae morti: Lamentations & Motets from Renaissance Europe
Incipit oratio Jeremiae prophetae: I. Incipit oratio Jeremiae Prophetae
Incipit oratio Jeremiae prophetae: II. Recordare, Domine, quid acciderit nobis
Incipit oratio Jeremiae prophetae: III. Pupilli facti sumus
Incipit oratio Jeremiae prophetae: IV. Cervicibus minabamur
Incipit oratio Jeremiae prophetae: V. Patres nostri peccaverunt
Incipit oratio Jeremiae prophetae: VI. Jerusalem, Jerusalem, convertere ad Dominum Deum tuum
Media vita: I. Media vita in morte sumus
Media vita: II. Sancte Deus. Sancte fortis
Lamentationes Jeremiae Prophetae: Lamentatio III, Pt. 1. Lamed. O vos omnes
Lamentationes Jeremiae Prophetae: Lamentatio III, Pt. 2. Mem. De excelso misit ignem
Lamentationes Jeremiae Prophetae: Lamentatio III, Pt. 3. Nun. Vigilavit iugum iniquitatum mearum
Lamentationes Jeremiae Prophetae: Lamentatio III, Pt. 4. Jerusalem, Jerusalem, convertere ad Dominum Deum tuum
Regina caeli: I. Regina caeli, laetare, alleluia
Regina caeli: II. Resurrexit, sicut dixit, alleluia
Vau. Et egressus est a filia Sion: I. Vau. Et egressus est
Vau. Et egressus est a filia Sion: II. Zain. Recordata est Jerusalem
Vau. Et egressus est a filia Sion: III. Jerusalem, Jerusalem, convertere ad Dominum Deum tuum
Regina caeli a 8: I. Regina caeli, laetare, alleluia
Regina caeli a 8: II. Resurrexit, sicut dixit, alleluia
Magnificat primi toni a 8: I. Magnificat anima mea Dominum
Magnificat primi toni a 8: II. Et exsultavit spiritus meus
Magnificat primi toni a 8: III. Quia respexit humilitatem ancillae suae
Magnificat primi toni a 8: IV. Quia fecit mihi magna
Magnificat primi toni a 8: V. Et misericordia eius
Magnificat primi toni a 8: VI. Fecit potentiam
Magnificat primi toni a 8: VII. Esurientes implevit bonis
Magnificat primi toni a 8: VIII. Suscepit Israel
Magnificat primi toni a 8: IX. Sicut locutus est
Magnificat primi toni a 8: X. Gloria Patri
Regina caeli a 6: I. Regina caeli, laetare, alleluia
Regina caeli a 6: II. Resurrexit, sicut dixit, alleluia
Laudate pueri a 8: I. Laudate pueri Dominum
Laudate pueri a 8: II. Quis sicut Dominus Deus
Flute Music of the 16th & 17th Centuries
Bransle de Champaigne / Bransle de Poictou
Tu Solus qui facis mirabilia: Tu Solus qui facis mirabilia
Lugebat David Absalom: Lugebat David Absalom
O Virgo Prudentissima: O Virgo Prudentissima
Sancte Johannes Apostole: Sancte Johannes Apostole
De Profondis Clamavi: De Profondis Clamavi
Ad te levavi oculos meos: Ad te levavi oculos meos
Ave Maria...Virgo Serena: Ave Maria...Virgo Serena
Deploration de la Mort de Jehan Ockeghem: Deploration de la Mort de Jehan Ockeghem
Missa "L'Homme Arme" Sexti Toni: Sanctus
Missa "L'Homme Arme" Sexti Toni: Agnus Dei
Nymphes des bois (La déploration de la mort de Johannes Ockeghem)
Schiarazula Marazula, Ungarescha & Saltarello
Sonata VII Stravagante sull'Ave Maris Stella
Tutti i madrigali a quattro voci, R 2513, Libro I: No. 8, Ancor che col partire
Faidit: Vos que'm semblatz dels corals amadors
De Maruelh: Na Carenza al bel cors avinen
De Bornelh: Si us quer conselh, bel'ami'Alamanda
Condesa de Dia: Ab joi et ab joven m'apais
Condesa de Dia: A chantar mér de so q'ieu no voldria
Traditional: Ah, el novio no quiere dinero
De la Torre: Damos gracias a ti, Dios (No. 281 from Real Biblioteca MS II/1335 "Cancionero de Palacio")
Anonymous: Sobre baza estaba el rey (No. 330 from Real Biblioteca MS II/1335 "Cancionero de Palacio")
Alfonso X el Sabio: Cantigas de Santa María: No. 10, Rosa das rosas
Alfonso X el Sabio: Cantigas de Santa María: No. 139, Maravillosos e piadosos
De Narváez: Los seys libros del delphín: Paseábase el rey moro
Mudarra: Libros de música en cifra para vihuela: Villancico I. "Dime a do tienes las mientes"
Morales: Si nos huviera mirado (No. 13 from Cancionero de Uppsala) [Also Attributed to Vásquez]
Anonymous: Puse mis amores (No. 116 from Real Biblioteca MS II/1335 "Cancionero de Palacio")
De Morata: Aquí me declaró su pensiamento
Anonymous: Llibre Vermell De Montserrat: O Virgo splendens hic in monte celso
Anonymous: Llibre Vermell De Montserrat: Stella splendens in monte
Anonymous: Llibre Vermell De Montserrat: Laudemus Virginem Mater est
Anonymous: Llibre Vermell De Montserrat: Los set goyts recomptarem
Anonymous: Llibre Vermell De Montserrat: Splendens ceptigera
Anonymous: Llibre Vermell De Montserrat: Polorum regina omnium nostra
Monks of the Monastery of Montserrat: Llibre Vermell de Montserrat - Cuncti simus concanentes: Ave Maria
Anonymous: Llibre Vermell de Montserrat: Mariam Matrem Virginem
Atelier Instrumental du Centre de l' Abbaye aux Dames
Anonymous: Llibre Vermell De Montserrat: Imperayritz de la ciutat joyosa
Anonymous: Llibre Vermell De Montserrat: Ad mortem festinamus
Anonymous: Villancicos from "Cancionero de la Colombina": No. 54, "Niña y viña"
Anonymous: Villancicos from "Cancionero de la Colombina": No. 57, "Propiñan de melyor"
Anonymous: Villancicos from "Cancionero de la Colombina": No. 92, "Como no le andaré yo?"
Anonymous: Villancicos from "Cancionero de Palacio": No. 6, "Al alba venid, buen amigo"
Anonymous: Villancicos from "Cancionero de Palacio": No. 434, "Perdi la mi rueca"
Anonymous: Villancicos from "Cancionero de Palacio": No. 101, "A los baños dell amor"
Garcimuñoz: Villancicos from "Cancionero de Palacio" (1490-1530): No. 450, "Pues bien para esta"
Anonymous: Villancicos from "Cancionero de Palacio": No. 448, "Si habéis dicho, marido"
Anonymous: Romances from "Cancionero de Palacio": No. 323, "Si d'amor pena sentis"
Román: Romances from 'Cancionero de Palacio': No. 444, "O voy"
Reveillez vous, cueurs endormis, "Le chant des oiseaux": Le chant des oiseaux
La, la Maistre Pierre: La, la, maistre Pierre
Margot labourez les vignes: Margot, labourez les vignes
ll est bel et bon, commere, mon mary: Il est bel et bon
Arreste un peu, mon coeur: Arrete un peu mon coeur
Josquin, the Undead: Laments, Deplorations & Dances of Death
N'est-ce pas un grand desplaisir, NJE 29.17
Gombert: Magnificat I / Salve Regina / Credo / Tulerunt Dominum
Salve regina (Mode 1): Salve regina [plainchant mode 1]
Salve regina - Ave regina - Inviolata, integra et casta es - Alma Redemptoris (Diversi diversa orant): Salve regina/Ave regina/Inviolata, integra et casta es/Alma Redemptoris mater [Diversi d
Epitaphium (in Josquinum a Prato), "Epitaph for Josquin des Pres"
Tiento para organo: Verso II, glosado en el tiple, Tono V
Regina caeli laetare/Resurrexi (Cancion a 5)
Deus in adjutorium - Domine ad adjuvandum
Sacerdos in aeternum Christus (Antiphona)
Pange Lingua (Cancionero de Segovia: 16th century Spain) - Lerma version a 5
Fabordon del primo tono, Glosado en tiple (Tiento para arpa)
Tu es Petrus a 6 (Commemoratio de dedicatione templi)
Confitebor tibi (Psalmus), alternatim fabordones Tono II
Haec est domus / Benefuntata est / Oremus
Beatus es et bene tibi a 4 (Commemoratio de S Sebastiane)
Ora pro nobis / Ut digni efficiamur / Oremus (Versiculus, Responsorium et Oratio)
Credidi (Psalmus), alternatim fabordones a 5, Tono III
Salve Regina a 8 (Antiphona de Beatae Mariae Viginis)
Benedicamus Domino / Deo dicamus gratias / Sanctissimae Trinitati
Beati omnes (Psalmus), alternatim fabordones del cuarto tono
Qui pacem ponit fines Ecclesiae (Antiphona)
Lauda Jerusalem (alternatim fabordones a6 /a 4)
Tantum ergo sacramentum a4 (Tiento para organo)
Pange lingua gloriosi: Pange lingua gloriosi - Nobis datus a 4 (Guerrero) - In supremae nocte coenae - Verbum caro a 4 (Guerrero) - Tantum ergo sacramentum - Nobis datus a 6 (Gaudí)
Panem de caelo (Versiculus) / Omne delectamentum (Responsorium)
O quam suavis est, Domine (Antiphona ad Magnificat)
Magnificat de Sexto Tono a 12 - Lerma version: with verses I, II, IV, VI, VII from Antonio de Cabezón
Dominus vobiscum - Deus, qui nobis sub Sacramento (Oratio)
Pange lingua gloriosi - Free improvisation in alternatim
Gombert: Tribulatio et angustia – Motets
From the Imperial Court: Music for the House of Hapsburg
Nicolas Gombert: Chansons Vol. 1 (Arr. for Guitar)
Dezilde al cavallero que non se quexe - Arr. for Guitar
En douleur et tristesse - Arr. for Guitar
Je ne scay pas comment - Arr. for Guitar
Le bergier et la bergiere - Arr. for Guitar
Gombert: Missa Media Vita In Morte Sumus
Missa "Media vita in morte sumus": Kyrie
Missa "Media vita in morte sumus": Gloria
Missa "Media vita in morte sumus": Credo
Missa "Media vita in morte sumus": Sanctus
Missa "Media vita in morte sumus": Agnus Dei
Gombert: Missa Tempore paschali & Other Sacred Music
Gombert: Music from the Court of Charles V
Regina coeli - Marian Antiphon for 12 Voices
In te domine speravi - Motet for Six Voices
Tous les regretz - Chanson for Six Voices
Je prens congie - Chanson for Eight Voices
Magnificat secundi toni: a. Et exultavit a 4 - Voice
Magnificat secundi toni: b. Quia fecit a 4 - Voice
Magnificat secundi toni: c. Fecit potentiam a 3 - Voice
Magnificat secundi toni: d. Esurientes a 2 - Voice
Magnificat secundi toni: e. Sicut locotus est a 4 - Voice
Magnificat secundi toni: f. Sicut erat a 5 - Voice
Missa tempore paschali - Mass for Six Voices: a. Kyrie a 6 - Voice
Missa tempore paschali - Mass for Six Voices: b. Gloria a 6 - Voice
Missa tempore paschali - Mass for Six Voices: c. Credo a 8 - Voice
Missa tempore paschali - Mass for Six Voices: d. Sanctus a 6 - Pleni sunt caeli a 5 - Hosanna a 6 - Benedictus a 4 - Hosanna a 6 - Voice
Missa tempore paschali - Mass for Six Voices: e. Agnus Dei I & II a 6 - Voice
Missa tempore paschali - Mass for Six Voices: f. Agnus Dei III & IV a 12 - Voice
Cristóbal de Morales: Mass for the Feast of St. Isidore of Seville
Dominus vobiscum ... Deus, qui populo tuo
EPISTOLA: Lectio Epistolae beati Pauli Apostoli ad Timotheum
Dominus vobiscum ... Sequentia sancti Evangelii secundum Matthaeum
Per omnia saecula saeculorum... Vere dignum et iustum est...
Per omnia saecula saeculorum... Pater noster...
NPR Milestones of the Millennium: The Renaissance in Music
Helas Avril (three-part virelai) - Voice
Een vrouelic wesen (Chanson à 4) - Vocal
Twenty Waies upon the Bells: 20 Waies upon the Bells
Palestrina: Missa Papae Marcelli - 01. Kyrie 1
Palestrina: Missa Papae Marcelli - 02. Christe
Palestrina: Missa Papae Marcelli - 03. Kyrie 2
Palestrina: Missa Papae Marcelli - 04. Gloria
Palestrina: Missa Papae Marcelli - 05. Qui Tollis Peccata Mundi
Palestrina: Missa Papae Marcelli - 06. Credo
Palestrina: Missa Papae Marcelli - 07. Et Incarnatus Est
Palestrina: Missa Papae Marcelli - 08. Crucifixus
Palestrina: Missa Papae Marcelli - 09. Et In Spiritum Sanctum
Palestrina: Missa Papae Marcelli - 10. Sanctus & Hosanna 1
Palestrina: Missa Papae Marcelli - 11. Benedictus
Palestrina: Missa Papae Marcelli - 12. Hosanna 2
Palestrina: Missa Papae Marcelli - 13. Agnus Dei 1
Palestrina: Missa Papae Marcelli - 14. Agnus Dei 2
Mouton: Ave Maria, Virgo Serena - 1. Ave Maria, Gratia Plena
Mouton: Ave Maria, Virgo Serena - 2. Tu Civitas Regis Justitiae
Gombert: Magnificat 6, Sexti Et Primi Toni - 1. Magnificat Anima Mea
Gombert: Magnificat 6, Sexti Et Primi Toni - 2. Quia Respexit
Gombert: Magnificat 6, Sexti Et Primi Toni - 3. Et Misericordia
Gombert: Magnificat 6, Sexti Et Primi Toni - 4. Deposuit Potentes
Gombert: Magnificat 6, Sexti Et Primi Toni - 5. Suscepit Israel
Gombert: Magnificat 6, Sexti Et Primi Toni - 6. Gloria Patri
Browne: Stabat Iuxta - 1. Stabat Iuxta Christi Crucem
Browne: Stabat Iuxta - 2. In Dolore Tunc Fuisti
Tallis: Lamentations of Jeremiah 1 - 1. Incipit
Tallis: Lamentations of Jeremiah 1 - 2. Aleph
Tallis: Lamentations of Jeremiah 1 - 3. Beth
Tallis: Lamentations of Jeremiah 2 - 1. De Lamentatione Jeremiae
Tallis: Lamentations of Jeremiah 2 - 2. Ghimel
Tallis: Lamentations of Jeremiah 2 - 3. Daleth
Tallis: Lamentations of Jeremiah 2 - 4. Heth
Brumel: Lamentations of Jeremiah - 1. Heth
Brumel: Lamentations of Jeremiah - 2. Caph
Brumel: Lamentations of Jeremiah - 3. Jerusalem
Ferrabosco the Elder: Lamentations of Jeremiah 1 - 1. De Lamentatione Jeremiae
Ferrabosco the Elder: Lamentations of Jeremiah 1 - 2. Daleth
Ferrabosco the Elder: Lamentations of Jeremiah 1 - 3. Lamed
Ferrabosco the Elder: Lamentations of Jeremiah 1 - 4. Jerusalem
Josquin: Missa Ave Maris Stella - 01. Kyrie 1
Josquin: Missa Ave Maris Stella - 02. Christe
Josquin: Missa Ave Maris Stella - 03. Kyrie 2
Josquin: Missa Ave Maris Stella - 04. Gloria
Josquin: Missa Ave Maris Stella - 05. Qui Tollis Peccata Mundi
Josquin: Missa Ave Maris Stella - 06. Credo
Josquin: Missa Ave Maris Stella - 07. Et Incarnatus Est
Josquin Desprez: Missa "Hercules dux Ferrariae", Motets and chansons
Des Prez: Ave Maria, gratia plena ... virgo serena
Des Prez: Scaramella va alla guerra and Scaramella fa la galla
Missa Hercules dux Ferrariae: Benedictus
Des Prez: In te Domine speravi, per trovar pietà
Des Prez: La déploration de Jehan Ockeghem "Nymphes des bois / Requiem"
Renaissance Music at the Court of the Kings of Spain
Missa Philippus Rex Hispaniae: V. Dicite in magni
Missa Tempore Paschali: Agnus Dei à 6 & 8
I Fiamminghi (The Orchestra of Flanders)
Renaissance of the Spirit: The Music of Orlando di Lasso and His Contemporaries
Extrait Du Concert Charles Quint Et François Ier: Inédit, Musae Jovis
Doulce Mémoire: Musique Sacrée/Musique Profane