Concerto Italiano is an Italian early music ensemble well known for their interpretations of Monteverdi and Vivaldi, among others. thumb|right|250px|Concerto Italiano - Live concert in 2009 The histor
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x405e1e5d2c4420fafecc5d212c56ad224e9f807f0518aac7350caf3d71795d87. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9059792a-3dd2-4cf1-93e6-2771902d83b7.json and https://artists.proofprofile.net/proofs/artist/9059792a-3dd2-4cf1-93e6-2771902d83b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Monteverdi: Madrigali, Libri primo e nono
Il primo libro de' madrigali: Ch'ami la mia vita nel tuo bel nome
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Il primo libro de' madrigali: Baci soavi e cari
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Il primo libro de' madrigali: Se pur non mi consenti
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Il primo libro de' madrigali: Filli cara, et amata
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Cantata for Alto, Strings and Continuo "Amor, hai vinto", RV 683: No. 2, Aria "Passo di pena in pena"
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Cantata for Alto, Strings and Continuo "Cessate, omai cessate", RV 684: No. 2, Aria, Larghetto "Ah, ch'infelice sempre"
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Madrigals, Book I: Ch'ami la mia vita nel tuo bel nome
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Madrigals, Book IX: Zefiro torna e di soavi accenti
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Vivaldi 12 Concertos Op.3 'Estro Armonico', Bach Keyboards Arrangements
L'estro armonico. Concerto No. 1 for 4 Violins in D Major, Op. 3, RV 549: I. Allegro
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L'estro armonico. Concerto No. 2 for 2 Violins in G Minor, Op. 3, RV 578: I. Adagio e spiccato
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L'estro armonico. Concerto No. 4 for 4 Violins in E Minor, Op. 3, RV 550: II. Allegro assai
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L'estro armonico. Concerto No. 4 for 4 Violins in E Minor, Op. 3, RV 550: III. Adagio
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L'estro armonico. Concerto No. 3 for Violin in G Major, Op. 3, RV 310: II. Largo
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L'estro armonico. Concerto No. 3 for Violin in G Major, Op. 3, RV 310: III. Allegro
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Concerto for 4 Harpsichords and Strings after RV 580 in A Minor, BWV 1065: I. [Allegro]
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L'estro armonico. concerto No. 8 for 2 Violins in A Minor, Op. 3, RV 522: I. Allegro
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L'estro armonico. Concerto No. 11 for 2 Violins and Cello in D Minor, Op. 3, RV 565: I. Allegro
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L'estro armonico. Concerto No. 11 for 2 Violins and Cello in D Minor, Op. 3, RV 565: II. Adagio e spiccato. Allegro
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L'estro armonico. Concerto No. 12 for Violin in E Major, Op. 3, RV 265: I. Allegro
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Concerto for Mandolin No. 2 in A Minor, Op. 144: I. Maestoso
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Mandolin Concerto in C Major, RV 425: III. —
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Aci, Galatea e Polifemo, HWV 72: I. Duetto. Sorge il dì - Spunta l'aurora
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La resurrezione, HWV 47: Aria. Disserratevi, o porte d’averno
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Gloria, RV 589: I. Gloria in excelsis Deo
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Gloria, RV 589: V. Domine Deus Rex coelestis
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Gloria, RV 589: VI. Domine Fili Unigenite
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Gloria, RV 589: VIII. Qui tollis peccata mundi
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Gloria, RV 589: X. Quoniam tu solus sanctus
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Dixit Dominus, RV 594: II. Donec ponam inimicos tuos
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Dixit Dominus, RV 594: IV. Tecum principium
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