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 0x8e5fee4ca9d1975f7924a84209a2944b18f08fceecc2c6eb8d973a836c162882. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e495ab9b-4986-4bbc-8c68-9ef6d3109501.json and https://artists.proofprofile.net/proofs/artist/e495ab9b-4986-4bbc-8c68-9ef6d3109501.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Crown of India, Op. 66: March of the Mogul Emperors
The Planets, Op. 32: I. Mars, the Bringer of War
Das Rheingold, Scene 4: Entry of the Gods into Valhalla
Die Walkure, Act III: Ride of the Valkyries
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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0d944d5afeaec52f2bf3ec35665129d06e275d3081f042b8554af51a11a3a3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1tBEwreUVCvZwt5oBE3MHP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1tBEwreUVCvZwt5oBE3MHP.
The Firebird Suite (1919 version): Firebird Suite: King Kastchei's Infernal Dance (1919 version)
Belgian Radio and Television Philharmonic Orchestra
Pini di Roma (Pines of Rome): IV. Pines of the Appian Way
Feste romane (Roman Festivals): IV. Epiphany
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Romeo and Juliet, Op. 64: Montagues and Capulets (Dance of the Knights)
Sinfonie Nr. 3 c-Moll, Op. 78, "Orgelsinfonie": 2. Maestoso - Allegro - Più allegro - Molto allegro - Pesante (Ein Schweinchen names Babe): Symphony No. 3 in C Minor, Op. 78, "Organ": II. All
Le sacre du printemps (The Rite of Spring): Part 2: The Sacrifice (excerpt)
The Red Poppy, Op. 70: Russian Sailors' Dance
Danzas fantasticas (Fantastic Dances), Op. 22: III. Orgia
The Philadelphia Virtuosi Chamber Orchestra
Symphony No. 9 in D Minor, WAB 109: II. Scherzo: Bewegt, lebhaft (original 1894 version, ed. L. Nowak)
Bilder einer Ausstellung: IX. The Hut on Fowls' Legs, "Baba Yaga"
Gotterdammerung, Act III: Siegfried's Death and Funeral March
Bilder einer Ausstellung: X. The Great Gate of Kiev
1812 Festival Overture, Op. 49: 1812 Overture, Op. 49: Finale
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Meyerbeer: Dinorah, Act 1: "Overture - salve! Sainte Marie" (Pilgrims)
Meyerbeer: Dinorah, Act 2: "Qu'il est bon, qu'il est bon" (Woodcutters, Villagers)
Meyerbeer: Dinorah, Act 3: "En chasse, piqueurs adroits!" (Huntsman)
Meyerbeer: Dinorah, Act 1: "Le jour radieux" (Villagers, Goatherd)
Meyerbeer: Dinorah, Act 2: "Dites-moi, dites vite; a-t-on vu Dinorah?" (Goatherd, Villagers)
Meyerbeer: Dinorah, Act 3: "Les bles sont bons a faucher" (Reaper)
Meyerbeer: Dinorah, Act 1: "Bellah! Ma chevre cherie!" (Dinorah)
Meyerbeer: Dinorah, Act 2: "Me voici! Me voici!" (Dinorah)
Meyerbeer: Dinorah, Act 3: "Sous les genevriers" (Goatherds)
Meyerbeer: Dinorah, Act 1: "Dors petite, dors tranquille" (Dinorah)
Meyerbeer: Dinorah, Act 2: "Ombre legere qui suis mes pas" (Dinorah)
Meyerbeer: Dinorah, Act 3: "Bonjour, faucheur!" (Huntsman, Reaper, Goatherd, Goatgirl, All)
Meyerbeer: Dinorah, Act 1: "Je suis chez moi! Que San Satan les emporte" (Corentin)
Meyerbeer: Dinorah, Act 2: "Arrive! Me voici" (Hoel, Corentin)
Meyerbeer: Dinorah, Act 3: "La force m'abandonne" (Corentin, Hoel)
Meyerbeer: Dinorah, Act 1: "J'en rougirais, eh bien! Apres!" (Corentin)
Meyerbeer: Dinorah, Act 2: "Ah! Que j'ai froid!" (Corentin)
Meyerbeer: Dinorah, Act 3: "Ah! Mon remords te venge" (Hoel)
Meyerbeer: Dinorah, Act 1: "Qui va la? C'etait le vent!" (Corentin)
Meyerbeer: Dinorah, Act 2: "C'est toi? Non, je frissonne!" (Dinorah, Corentin)
Meyerbeer: Dinorah, Act 3: "Grand Dieu! Son teint s'anime et se" (Dinorah, Hoel)
Meyerbeer: Dinorah, Act 1: "Sonne, sonne, gai sonneur!" (Dinorah, Corentin)
Meyerbeer: Dinorah, Act 2: "Quand l'heure sonnera" (Hoel, Corentin)
Meyerbeer: Dinorah, Act 3: "Vois! ... regarde ces lieux!" (Hoel, Dinorah)
Meyerbeer: Dinorah, Act 1: "Hola! He! Vieil Alain!" (Hoel, Corentin)
Meyerbeer: Dinorah, Act 2: "Tu fremis? Que m'importe!" (Hoel, Corentin, Dinorah)
Meyerbeer: Dinorah, Act 3: "Sainte Marie!" (Villagers, Dinorah, Corentin)
Meyerbeer: Dinorah, Act 1: "O puissante magie! Ivresse de mes sens!" (Hoel)
Meyerbeer: Dinorah, Act 2: "Taisez-vous!" (Hoel, Corentin, Dinorah)
Meyerbeer: Dinorah, Act 1: "Me voici j'ai tarde" (Corentin, Hoel)
Meyerbeer: Dinorah, Act 2: "De l'oiseau dans le bocage" (Dinorah, Hoel, Corentin)
Meyerbeer: Dinorah, Act 1: "Si tu crois revoir ton pere expirant ..." (Hoel, Corentin)
Meyerbeer: Dinorah, Act 1: "Un tresor!" (Hoel, Corentin)
Meyerbeer: Dinorah, Act 1: "Ce tintement que l'on entend" (Dinorah, Hoel, Corentin)
Ein Sommernachtstraum, Op. 61, MWV M13: A Midsummer Night's Dream, Op. 61, Act III: Nocturne
Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on G String"
Piano Sonata No. 12 in F Major, K. 332: II. Adagio
Berceuse, Op. 16 (version for orchestra)
CSSR State Philharmonic Orchestra, Kosice
2 Lyric Pieces, Op. 68: No. 5. Badnlat (At the Cradle) (version for orchestra)
3 Gymnopedies (orch. Debussy): Gymnopedie No. 1 (orch. Debussy)
Violin Concerto No. 7 in E Minor, Op. 38: II. Adagio
Orphee et Eurydice, Act II: Dance of the Blessed Spirits (arr. for flute and harp)
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Lyric Pieces, Book 2, Op. 38: No. 1. Berceuse
Jocelyn, Op. 100, Act I: Oh! Ne t'eveille pas encor, "Berceuse" (arr. for orchestra)
Concerto for Flute and Harp in C Major, K. 299: II. Andantino
5 Lieder, Op. 49: No. 4. Wiegenlied (arr. for orchestra)
Carmen (arr. for flute and harp): Carmen, Act III: Entr'acte (arr. for flute and harp)
Suite bergamasque: III. Clair de lune (arr. A. Reed)
Lyric Pieces, Book 10, Op. 71: No. 2. Someraften (Summer's Eve)
Wiegenlied (Cradle Song), D. 498 (arr. for orchestra)
Sicilienne, Op. 78 (arr. for flute and harp)
3 Gymnopedies: No. 2. Lent et triste (arr. for orchestra): Gymnopedie No. 2 (orch. Debussy)
Lyric Pieces, Book 10, Op. 71: No. 4. Skovstilhed (Peace of the Woods)
2 Arabesques: No. 1 in E Major (arr. D. Sosin): Arabesque No. 1 (arr. for flute and harp)
Kinderszenen (Scenes of childhood), Op. 15: VII. Traumerei (Dreaming) (arr. for orchestra)
Album for the Young, Op. 39: No. 21. Douce reverie (Sweet Dreams) (arr. for orchestra)
The Firebird Suite (1919 version): VI. Lullaby
It Is Written in the Stars: Classical Music for Stargazing
Consolations, S172/R12: No. 3. Lento placido
Lyric Pieces, Book 5, Op. 54: No. 4. Notturno
Gymnopédies: 3 Gymnopedies: Gymnopedie No. 1
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25 Preludes, Op. 64: No. 9 in E Major: Andantino
13 Preludes, Op. 32: No. 5 in G Major: Moderato
3 Pieces, Op. 11: No. 1. Prelude in B Minor
7 Preludes, Op. 17: No. 3 in D-Flat Major
Symphonic Etudes, Op. 13: Etudes symphoniques (Symphonic Etudes), Op. 13: Anhang Variation 5
Nocturne No. 8 in D-Flat Major, Op. 27, No. 2
Nocturne No. 17 in B Major, Op. 62, No. 1
Klarinettenkonzert Nr. 1 f-Moll: Clarinet Concerto No. 1 in F Minor, Op. 73, J. 114: II. Adagio ma non troppo
Slovak State Philharmonic Orchestra, Kosice
Symphony No. 5 in C-Sharp Minor: IV. Adagietto: Sehr langsam
Ein Sommernachtstraum, Op. 61, MWV M13: A Midsummer Night's Dream, Op. 61, MWV M13, Act III: Nocturne
Vremena goda (The Seasons), Op. 67: XIII. Summer: Coda
Violin Concerto in D Major, Op. 35, TH 59: I. Allegro moderato
Violin Concerto in D Major, Op. 35, TH 59: II. Canzonetta. Andante
Violin Concerto in D Major, Op. 35, TH 59: III. Finale. Allegro vivacissimo
Duo for Violin & Viola in B-Flat Major, K. 424: I. Adagio - Allegro
Violin Concerto in D Minor, MWV O3: I. Allegro
Violin Sonata No. 1 in G Major, Op. 78: I. Vivace ma non troppo
Violin Concerto in D Minor, MWV O3: II. Andante
Violin Sonata No. 1 in F Minor, Op. 80: III. Andante
Violin Concerto in D Minor, MWV O3: III. Allegro
Violin Partita No. 2 in D Minor, BWV 1004: V. Ciaccona
Violin Concerto in E Minor, Op. 64: II. Andante
Violin Sonata in G Major, Op. 134: I. Andante
Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo
Spiegel im Spiegel (Version for Violin & Piano)
Violin Concerto, Op. 15: I. Moderato con moto
Sonata pastorale in A Major, Op. 1 No. 13, B.A16: III. Largo
Symphonie espagnole in D Minor, Op. 21: V. Rondo. Allegro
Polish National Radio Symphony Orchestra
Violin Sonata No. 1 in G Minor, BWV 1001: I. Adagio
Violin Sonata in A Minor, Op. 27 No. 2: III. Sarabande. Lento "Danse des ombres"
Violin Sonata No. 1 in G Minor, BWV 1001: II. Fuga. Allegro
Scherzo fantastique, Op. 25 "La ronde des lutins"
Violin Sonata No. 1 in G Minor, BWV 1001: IV. Presto
5 Pieces for Violin & Piano, Op. 81: No. 1, Mazurka
Violin Concerto No. 1 in G Minor, Op. 26: II. Adagio
Violin Concerto No. 2 in B Minor, Op. 7, MS 48: III. Rondo a la clochette "La campanella"
The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": I. Allegro non moto
24 Caprices, Op. 1: No. 1 in E Major. Andante
Carmen Concert Fantasy, Op. 25 (After G. Bizet): IV. Allegro moderato
24 Caprices, Op. 1: No. 2 in B Minor. Moderato
Violin Concerto in D Major, Op. 77: I. Allegro non troppo
24 Caprices, Op. 1: No. 24 in A Minor. Tema quasi presto
Mystery (Rosary) Sonata No. 1 "Annunciation"
The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
Violin Concerto in B Minor, Op. 61: I. Allegro
Tzigane, M. 76 (Version for Violin & Orchestra)
Violin Concerto in B Minor, Op. 61: II. Andante
Violin Concerto No. 2 in G Minor, Op. 63: II. Andante assai
Violin Concerto in B Minor, Op. 61: III. Allegro molto
Violin Concerto in D Minor, Op. 47: III. Allegro, ma non tanto
The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
The 4 Seasons: Violin Concerto in E Major, Op. 8, No. 1, RV 269, "La primavera" (Spring): I. Allegro
The Butterfly Lovers Violin Concerto (conclusion)
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Piano Sonata No. 8 in C Minor, Op. 13, "Pathetique": III. Rondo: Allegro
Symphony No. 4 in B-Flat Major, Op. 60: III. Menuetto: Allegro vivace - Trio: Un poco meno allegro
Così fan tutte, K. 588: Cosi fan tutte, K. 588, Act I: Aria: Come scoglio
Symphony No. 4 in E-Flat Major, WAB 104, "Romantic": III. Scherzo: Bewegt (1881 version, ed. R. Haas)
String Quartet No. 2 in A Minor: IV. Epilogue: Andante sostenuto
Violin Sonata in D Major, Op. 8, No. 3: Largo Espressivo
The Well-Tempered Clavier, Book 1, BWV 846-869: Prelude and Fugue No. 2 in C Minor, BWV 847
String Quartet No. 53 in D Major, Op. 64, No. 5, Hob.III:63, "The Lark": III. Menuetto: Allegretto
Flute Concerto No. 2 in D Major, K. 314: I. Allegro aperto
Winterreise, Op. 89, D. 911: Der Lindenbaum
Carmen Fantasy, Op. 25: I. Introduction: Allegro moderato
Piano Concerto No. 1 in E-Flat Major, S124/R455: I. Allegro maestoso - Tempo giusto
Grand Variations on Rule Britannia, Op. 116
Symphony No. 8 in G Major, Op. 88, B. 163: III. Allegretto grazioso - Molto vivace
Symphony No. 3, Op. 36, "Symphony of Sorrowful Songs": II. Lento e largo - Tranquillissimo
Symphony No. 9 in C Major, D. 944, "Great": IV. Finale: Allegro vivace
Overture Suite in G Minor, TWV 55:g4: III. Les Irresoluts
Ein Sommernachtstraum, Op. 61, MWV M13: A Midsummer Night's Dream, Op. 61, Act IV: Wedding March
Songs of Experience, Volume I: Part I: Earth's Answer
Symphony No. 3, "Circus Maximus": I. Introitus
Lightning flashes over the Tatra… (Slovakia) (arr. P. Breiner)
English Folk Song Suite: I. March, "Seventeen come Sunday" (Arr. G. Jacob for Orchestra)
The Wand of Youth Suite No. 1, Op. 1a: VII. Fairies and Giants
National Orchestral Institute Philharmonic
Songs and Dances from the Silk Road: The Half-Moon Climbs (Uygur Folk Song)
Concertante for Piano Left Hand: III. Rondo. Allegro moderato
Die Seejungfrau (the Mermaid): I. Sehr massig bewegt
Chanson de Matin, Op. 15 No. 2 (Version for Orchestra)
A Midsummer Night's Dream, Op. 61, MWV M 13, Act III: Nocturne
Fantasia on Greensleeves (Arr. R. Greaves for Orchestra)
Concerto for Orchestra, "Jubilee Games": IV. Benediction. Moderato, invocando
Pomp & Circumstance, Op. 39: March No. 1 in D Major "Land of Hope & Glory"
5 Lieder, Op. 49: No. 4. Wiegenlied (Lullaby) (arr. for orchestra)
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The Firebird Suite: V. Berceuse (Lullaby)
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Kinderszenen (Scenes of childhood), Op. 15: No. 7. Traumerei (Dreaming)
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Lyric Pieces, Book 5, Op. 54: No. 4. Nocturne
2 Pieces, Op. posth., B. 188: No. 1. Lullaby in G Major
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Suite bergamasque: III. Clair de lune (arr. A. Reed for orchestra)
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Album for the Young, Op. 39: No. 21. Sweet Dreams (Douce reverie)
Chants d'Auvergne, Vol. 1: Series 3: No. 4. Brezairola (Cradle Song)
Lieder ohne Worte (Songs without Words), Book 6, Op. 67: No. 36 in E Major, Op. 67, No. 6
Wiegenlied, Op. 98, No. 2, D. 498 (arr. for orchestra)
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Book of Songs, Book 1: Come, heavy sleep
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Skazka (Legend), Op. 29: Fairy Tale (Skazka), Op. 29
Pohadka o Zlatovlasce (A Fairy-Tale of Goldilocks), H. 28: I. Pohadka (Fairy Tale)
Pohadka o Zlatovlasce (A Fairy-Tale of Goldilocks), H. 28: II. Pastorale
Pohadka o Zlatovlasce (A Fairy-Tale of Goldilocks), H. 28: III. Dumka
Pohadka o Zlatovlasce (A Fairy-Tale of Goldilocks), H. 28: IV. Barkarola
Z Pohadek Andersenovych (From Andersen's Fairy-Tales), H. 42: I. Polonaise
Z Pohadek Andersenovych (From Andersen's Fairy-Tales), H. 42: II. Intermezzo
Z Pohadek Andersenovych (From Andersen's Fairy-Tales), H. 42: III. Novelette
Z Pohadek Andersenovych (From Andersen's Fairy-Tales), H. 42: IV. Barcarolle
Z Pohadek Andersenovych (From Andersen's Fairy-Tales), H. 42: V. Arabesque
Z Pohadek Andersenovych (From Andersen's Fairy-Tales), H. 42: VI. Valse mignonne
Pohadka (Fairy-tale), JW VII/5: I. Con moto
Pohadka (Fairy-tale), JW VII/5: II. Con moto
Pohadka (Fairy-tale), JW VII/5: III. Allegro
Piesni ksieznicki z basni (Songs of a Fairy Princess), Op. 31
Polish State Philharmonic Orchestra, Katowice
Suite de concert, Op. 28: III. Marchen: Andantino
Pohadka (Fairy Tale), Op. 16: I. O vernem milovani Raduze a Mahuleny a jejich strastech (About the constant love of Raduz and Mahulena and their trials)
Pohadka (Fairy Tale), Op. 16: II. Intermezzo: Hra na labute a pavy (Playing at swans and peacocks)
Pohadka (Fairy Tale), Op. 16: III. Intermezzo: Smutecni hudba (Funeral music)
Pohadka (Fairy Tale), Op. 16: IV. Runy kletba a jak byla laskou zrusena (Runa's curse and how it was broken by true love)
The Swineherd Suite: VII. The Magic Kettle
Thumbelina Suite: V. Meeting with the Prince
A Fairy Tale Suite: I. The Princess: Allegretto con moto
A Fairy Tale Suite: II. The Ogre: Allegro deciso
A Fairy Tale Suite: III. The Spell: Adagio e sostenuto
A Fairy Tale Suite: IV. The Prince: Allegro giocoso
The Snow Maiden, Op. 12: Prologue: Introduction
The Snow Maiden, Op. 12: Prologue: Dance and Chorus of Birds
The Snow Maiden, Op. 12: Prologue: Monologue of Frost
The Snow Maiden, Op. 12: Prologue: Shrovetide Procession Chorus
The Snow Maiden, Op. 12: Prologue: Melodrama
The Snow Maiden, Op. 12: Act I: Entr'acte
The Snow Maiden, Op. 12: Act I: Lel's First Song
The Snow Maiden, Op. 12: Act I: Lel's Second Song
The Snow Maiden, Op. 12: Act II: Entr'acte
The Snow Maiden, Op. 12: Act II: Chorus of Blind Gusli-Players
The Snow Maiden, Op. 12: Act II: Melodrama
Mystic Classics - Visionary Choral and Orchestral Masterpieces
Royal Scottish Academy of Music and Drama Wind Orchestra
Symphony No. 4, Op. 165: III. Andante espressivo
Symphony No. 2 in C Minor, "Resurrection": IV. Sehr feierlich, aber schlicht
Symphony No. 7, "Angel of Light": III. Come un sogno
St. John Passion: Passio: "Unde es tu?" Jesus autem responsum non dedit ei
Symphony No. 53, Op. 377, "Star Dawn": I. Maestoso sostenuto
Symphony No. 20, Op. 223, "3 Journeys to a Holy Mountain": I. Andante espressivo
Symphony No. 53, Op. 377, "Star Dawn": II. Moderato sostenuto con molta espressione
Symphony No. 20, Op. 223, "3 Journeys to a Holy Mountain": II. Allegro moderato
The Planets, Op. 32: VII. Neptune, the Mystic
Royal Scottish National Orchestra Chorus, Female members
Symphony No. 20, Op. 223, "3 Journeys to a Holy Mountain": III. Andante maestoso
Prayer of Saint Gregory, Op. 62b (version for trumpet and wind band)
Symphonie romantique, "A Night in the Tropics": Festa Criolla
Hot Springs Music Festival Symphony Orchestra
Symphony for Five Instruments: III. Presto
Piano Concerto No. 2 in D Minor, Op. 23: IV. Largo - Molto allegro
Piano Quartet in C Major, Op. 23: I. Allegro comodo
Symphony No. 4 in D Minor, Op. 64: III. South (Allegretto giocoso)
Piano Concerto in C-Sharp Minor, Op. 45: III. Largo
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Knoxville: Summer of 1915, Op. 24: Orchestral Introduction - It has become that time of evening
4 American Indian Songs, Op.45: No. 1. From the Land of the Sky-Blue Water (arr. G. Yost)
Symphony No. 22, Op. 236, "City of Light": II. Angel of Light (Largo)
Violin Concerto (original version): Introduction
Rapture: Percussion Concerto, "Rapture": III. Metals (excerpt)
Pilgrim's Progress: Pioneers Of American Classical Music
6 Pictures of Hollywood: Hollywood Suite: Production Number
3 Latin American Sketches: Danza de Jalisco
Violin Concerto, Op. 14: III. Presto in moto perpetuoso
Hot Springs Music Festival Chamber Chorus
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Concerto For Violin, Oboe, And Strings In D Minor, BWV 1060 - Arr. For Panpipes From Reconstruction By Max Schneider (1875- 1967): 2. Adagio
Ave Maria (Arr. Cullen for Cello and Orchestra)
Gentle Dreams: The Best of Julian Lloyd Webber
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air on the G String (Arr. Cullen for Cello and Orchestra)
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Méditation de Thaïs (Arr. Cullen for Cello and Orchestra)
Panis Angelicus (Arr. Cullen for Cello and Orchestra)
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito