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 0xb51e323050f44d86ac53ad4d6cde6d3344f1b6ae1c73f519b4f650975eac4ae9. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aaa98976-aafc-445d-a2c0-a815eaa826c8.json and https://artists.proofprofile.net/proofs/artist/aaa98976-aafc-445d-a2c0-a815eaa826c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Folias - Spanish Music for Harpsichord from the 17th Century
Dies y Seis Glosas Sobre el Canto Llano Guárdame las Vacas, Fo 65
Tiento de Primero Tono, de a Cinco, Fo 52
Tiento Lleno de 6. Tono Sobre Ut Re Mi Fa Sol La
Dies y seis Glosas sobre el Canto Llano Guárdame las Vacas
Tiento lleno de 6° tono sobre Ut Re Mi Fa Sol La
L’armonia delle sfere - Ut Re Mi Fa Sol La
Girolamo Cavazzoni: Hymnus Ave Maris Stella
Vincenzo Pellegrini: Canzone detta la Berenice
Vincenzo Pellegrini: Canzon detta la Diana
Vincenzo Pellegrini: Canzon detta la Capricciosa
John Bull: Ut, re, mi, fa, sol, la, FVB 51
Vincenzo Pellegrini: Canzon detta la Nora
Antonio de Cabezón: Benedicta es regina celorum
Vincenzo Pellegrini: Canzon detta la Serafina
Girolamo Frescobaldi: Capriccio sopra Ut, Re, Mi, Fa, Sol, La, F 4.01
Vincenzo Pellegrini: Canzon detta la Cassiodora
Girolamo Frescobaldi: Capriccio sopra La, Sol, Fa, Mi, Re, Ut, F 4.02
Vincenzo Pellegrini: Canzon detta la Serpentina
Johann Jacob Froberger: Toccata IV, FbWV 104
Johann Jacob Froberger: Fantasia sopra Ut Re Mi Fa Sol La, FbWV 201
Jacques Champion de Chambonnières: Courante en la mineur
Jacques Champion de Chambonnières: Courante en ré mineur
Jacques Hardel, Louis Couperin: Gavotte & Double
Johann Jacob Froberger: Lamentation faite sur la mort très douloureuse de sa majesté Imperiale Ferdinand III, ...1657
Jacques Hardel: Suite en ré mineur - Allemande
Jacques Hardel: Suite en ré mineur - Courante I
Jacques Hardel: Suite en ré mineur - Courante II
Jacques Hardel: Suite en ré mineur - Courante III
Jacques Hardel: Suite en ré mineur - Sarabande
Jacques Hardel: Suite en re mineur - Gigue
Henry Purcell: Aire in d (from "The Married Beau"), Z. T696/2
Henry Purcell: Hornpipe in g (from "The Fairy Queene"), AU 8
Henry Purcell: Chacone in g (from "Timon of Athens"), Z. T680
Jean Henry d'Anglebert, Jean-Baptiste Lully: Courante & Double
Jean Henry d'Anglebert: Gavotte. Ou estes vous allé. Air ancien
Jean Henry d'Anglebert: Menuet de Poitou. Vaudeville
Jean Henry d'Anglebert, Jean-Baptiste Lully: Les Songes agréables d'Atys
Jean Henry d'Anglebert: Passacaille en sol mineur
François Couperin: Le Carillon de Cithére
Joseph Bodin de Boismortier: La Sérénissime
Louis-Claude Daquin: Les Enchainemens harmonieux
William Inglot: The Leaves bee greene, FVB 251
William Byrd, John Dowland: Pavana Lachrymae, FVB 121
Anonymous: Three Corrantos, FVB 223, 224, 225
John Bull: Pavana in a ("Fantastic Pavan"), FVB 34
John Bull: Galiarda to the Paven, FVB 48
John Bull: The Duke of Brunswick's Alman, FVB 142
John Bull: The Duchesse of Brunswick's Toye, FVB 262
William Byrd: Callino Casturame, FVB 158
William Byrd, James Harding: Galiarda, FVB 122
Edmund Hooper: Corranto & Alman in A, FVB 221, 222
Giles Farnaby: Quodlings Delight, FVB 114
Thomas Tomkins: Worster Braules, FVB 207
Thomas Tomkins: A Sad Pavan for these distracted times,1649, MB 53
Antonio de Cabezón, Nicolas Gombert: Ayme Qui Vouldra
Andrea Gabrieli: Ricercar Nono Tono, IAG 90 (Libro III)
Claudio Merulo: Toccata Seconda del Primo tuono (Libro I, 1598)
Antonio de Cabezón, Josquin Des Prez: Ave Maria
Marco Facoli: Padoana prima dita Marucina
Giovanni Picchi: Saltarello del Pass'e Mezzo
Manuel Rodrigues Coelho: Tento IV do segundo tom por Bemol
Peter Philips, Giulio Caccini: Amarilli di Julio Romano, FVB 132
Giovanni Maria Trabaci: Gagliarda Quarta à 4 detta la Morenigna (Libro II, 1615)
Giovanni Maria Trabaci: Durezze et Ligature (Libro I, 1603)
Giles Farnaby: The Old Spagnoletta, FVB 289
Girolamo Frescobaldi: Corrente Seconda & Alio Modo, F3.34, F3.35 (Toccate II, 1627)
Ascanio Mayone: Toccata Terza (Libro II,1609)
Johann Jacob Froberger: Capriccio III, FbVW 514 (Libro IV, 1656)
Bernardo Pasquini: Tastata in g "per Milone"
Bernardo Pasquini: Fuga in g "per D. Giovanni Ruffo"
Bernardo Storace: Passagagli in a - Live
Georg Friedrich Händel: Partie ex c, HWV 444 - Preludio, Allemande
Georg Friedrich Händel: Partie ex c, HWV 444 - Courante
Georg Friedrich Händel: Partie ex c, HWV 444 - Gavotte, Menuet
Gottlieb Muffat: Toccata Vigesima Secunda in e
Gottlieb Muffat: Capriccio Vigesimo Secundo in e
Johann Sebastian Bach: Praeludium & Fughetta in d, BWV 899
Gottlieb Muffat: Toccata Decima Quarta & Capriccio Decimo Quarto, in g
Georg Friedrich Händel: Minuet in g, HWV 434.IV
Johann Sebastian Bach: Duetto III in G, BWV 804
Johann Sebastian Bach: Praeludium & Fuga XIX in A, BWV 888
Georg Friedrich Händel: Allemande in F, HWV 476
Giovanni Battista Martini: Sicciliana Adagio (from: Sonata IX in fa minore, 1742)
Domenico Scarlatti: Sonata in fa minore, K 50
Domenico Scarlatti: Sonata in Mi maggiore, K.20
Domenico Scarlatti: Sonata in Do maggiore, K 157
Domenico Scarlatti: Sonata in fa minore, K 204b
Antonio Soler: Sonata 16 en Mi Bemol Mayor, Largo andante
Antonio Soler: Sonata 17 en Mi Bemol Mayor, Allegro
Carlos Seixas: Minuet em fá menor - Live
Frescobaldi: Toccate e Partite, Libro I & Capricci, Recercari, Canzoni
Partite sopra l’Aria della Romanesca, F 2.13
Balletto Primo, F 2.21 / Corrente del Balletto. F 2.22 / Passacagli, F 2.23
Capriccio sopra la Bassa Fiamenga, F 4.05
Corrente prima, F 2.17 / Corrente seconda F 2.18 / Corrente terza, F 2.19 / Corrente quarta, F 2.20
Capriccio sopra La, Sol, Fa, Re, Mi, F 4.04
Balletto secondo, F 2.24 / Corrente del Balletto, F 2.25