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 0xc834ea9d593b7eac2f615084a04740db3c02617e06a0691cf548655858998360. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a6dbab2-409e-4cf0-8175-30261066ada4.json and https://artists.proofprofile.net/proofs/artist/9a6dbab2-409e-4cf0-8175-30261066ada4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach: Grand Overture, Op. 18, No. 1, W. C26 - Mozart: Piano Concerto, No. 12, K. 414 - Stravinsky: 3 Pieces for String Quartet
Mozart: Piano Concerto in E-Flat Major, K. 482
Mozart: Fantasia K 397 Sonate K 576, 333, 330
Piano Concerto No. 26 in D Major, K. 537, 'Coronation' (Live)
Mozart: Piano Concerto No. 24 in C Minor, Op. 24, K. 491
Duo-Recital Naoya Nishimura & Andrea Bacchetti -Corelli, Beethoven, Ravel, Saint-Saens, Bazzini & Paganini
Andrea Bacchetti & Domenico Nordio Al Teatro la Fenice
Andrea Bacchetti Un Portrait, Vol. 2 (Live)
Mozart: Piano Concerto No. 25 in C Major, K. 503
Mozart: Piano Concertos K. 414 & K. 271 (Live at Teatro Carlo Felice, Genova)
Archivi del Teatro Carlo Felice, volume 17; Andrea Bacchetti plays Bach
Mozart: Piano Concerto No. 17 in G Major, K. 453
Concerto per pianoforte e orchestra k271 "Jeunhomme"
Fano & Omizzolo: Works for Cello & Piano
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Keyboard Concerto No. 5 in F Minor, BWV 1056: II. Largo
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Keyboard Concerto No. 2 in E Major, BWV 1053: I. [ ]
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Keyboard Concerto No. 7 in G Minor, BWV 1058: I. (Allegro)
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Keyboard Concerto No. 2 in E Major, BWV 1053: II. Siciliano
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Keyboard Concerto No. 7 in G Minor, BWV 1058: III. Allegro assai
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Keyboard Concerto No. 3 in D Major, BWV 1054: II. Adagio e piano sempre
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Keyboard Concerto No. 3 in D Major, BWV 1054: III. Allegro
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Keyboard Concerto No. 4 in A Major, BWV 1055: II. Larghetto
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Sonata per cembalo del Sig. Gio. Hasse Sassone: Largo
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Johann Sebastian Bach French Suites BWV 812-817
Bach: Goldberg Variations - 5 pieces from the Clavierbuchlein for Anna Magdalena Bach
Goldbergvariationen, BWV 988: Aria (Der englische Patient): Variatio 2. a 1 Clav.
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Toccata in E Minor, BWV 914: III. Adagio
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Bach: Two-Part Inventions & Sinfonias and Other Keyboard Works
2-Part Inventions, BWV 772-786: Invention No. 1 in C Major, BWV 772
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2-Part Inventions, BWV 772-786: Invention No. 3 in D Major, BWV 774
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2-Part Inventions, BWV 772-786: Invention No. 5 in E-Flat Major, BWV 776
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2-Part Inventions, BWV 772-786: Invention No. 6 in E Major, BWV 777
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2-Part Inventions, BWV 772-786: Invention No. 9 in F Minor, BWV 780
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2-Part Inventions, BWV 772-786: Invention No. 10 in G Major, BWV 781
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2-Part Inventions, BWV 772-786: Invention No. 11 in G Minor, BWV 782
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2-Part Inventions, BWV 772-786: Invention No. 13 in A Minor, BWV 784
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3-Part Inventions (Sinfonias), BWV 787–801: Sinfonia No. 4 in D Minor, BWV 790
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3-Part Inventions (Sinfonias), BWV 787–801: Sinfonia No. 7 in E Minor, BWV 793
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3-Part Inventions (Sinfonias), BWV 787–801: Sinfonia No. 14 in B-Flat Major, BWV 800
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Felix Mendelssohn-Bartholdy: Piano Concerto No. 1 op. 25, Capriccio brillante op. 22, Rondo brillante op. 29 & Serenata e Allegro giojoso op
Wolfgang Amadeus Mozart: Klavierkonzerte KV413 & KV414, Fantasia in Re minore KV397, Variazioni KV264 & Rondò in Re minore KV485
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Toccata BWV 914, Goldberg Variations BWV 988