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 0xf71d52781814caeef5857225077d190b65eeb6f79b629f11dfe7e2035e93fa53. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec85d747-45db-4ccf-9f47-ff9f8cb6592d.json and https://artists.proofprofile.net/proofs/artist/ec85d747-45db-4ccf-9f47-ff9f8cb6592d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
French Violin Sonatas: Fauré, Debussy, & Franck
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Casse-Noisette: Valse des fleurs, Op. 71
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Valse No. 5 en la bémol majeur "Grande Valse", Op.42
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Violin Concerto, Op. 35 II. Canzonetta. Andante
Saint Petersburg Radio And Tv Symphony Orchestra
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The Four Seasons - Violin Concerto In F Major, Rv 293, “Autumn” II. Adagio Molto
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24 Préludes, Op. 28 No. 15, Sostenuto in D-Flat Major
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The Four Seasons - Violin Concerto In F Minor, Rv 297, “Winter” II. Largo
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Serse, Hwv 40, Act I Largo "Ombra mai fù"
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Classical Piano - The Essential Masterpieces
Suite Bergamasque, L. 75: No. 4, Passepied
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Sonata No. 8 in C Minor for Piano, Op. 13, "Pathétique": Adagio cantabile
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Nocturnes, Op. 27: No. 2 in D-Flat Major: Lento sostenuto
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Sonata No. 14 in C-Sharp Minor for Piano, Op. 27:2, "Moonlight": I. Adagio sostenuto
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Concerto in A Minor for Piano and Orchestra, Op. 16: II. Adagio
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Waltz No.6 in D flat major, Minute Waltz Op. 64 No.1
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Riga Chamber Choir "Ave Sol", Imants Kokars
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The Color of Music: Classical Special Moments
Peer Gynt Suite No. 1, Op. 46 : I. Morning Mood
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Trois Gymnopédies: Gymnopédie No. 1 (Lent et Douloureux)
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50 Summer Concert Classics: Frédéric Chopin - Best Piano Collection
Waltz No.7 in C sharp minor, Op. 64, No.2
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Adagio from Keyboard Concerto, BWV 974 (after Marcello)
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Classical Composers Collections: 50 Best of Chopin
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Good Night Classical Music - Sweet Dreams
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The 100 Greatest Masterpieces of Classical Music
The 100 Best Classical Impressions: Classics For Relaxation
88 Holiday Classical Christmas: On Christmas Night
Préludes, Book 2: Lent (La terrasse des audiences du clair de lune)
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From Lyric Pieces, Book 8, Op.65: VI. Bryllopsdag på Troldhaugen (Wedding-day at Troldhaugen)
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Slow Moments - The Classical Chill Out Collection
Classical Hooks: The Best Classical Music, Vol. 2