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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bdf5ae035fd75dd077875204fb879002899f55e5d7df13cb91a4d74b783dfa. 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/1042ad1d-f2c3-4e57-b0c9-2c7f9c686c07.json and https://artists.proofprofile.net/proofs/artist/1042ad1d-f2c3-4e57-b0c9-2c7f9c686c07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The A to Z of Classical Music (3rd Expanded Edition, 2009)
Piano Trio No. 1 in D Minor, Op. 49: II. Andante con moto tranquillo
Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
Occhi un tempo mia vita: Occhi, un tempo mia vita
44 Duos for Two Violins, Book 1, Sz. 98: No. 14. Parnas Tanc (Pillow Dance)
Clarinet Quintet in A Major, K. 581: II. Larghetto
Piano Sonata No. 8 in C Minor, Op. 13, "Pathetique": I. Grave - Allegro di molto e con brio
Motets for 5-8 Voices: Book 3 for 5, 6 and 8 Voices: Hodie Christus natus est
Symphonie fantastique, Op. 14: IV. Marche au supplice
Piano Concerto No. 4 in B-Flat Major, Op. 53: IV. Vivace
Polish National Radio Symphony Orchestra
Symphony No. 3 in F Major, Op. 90: III. Poco allegretto
Belgian Radio and Television Philharmonic Orchestra
Simple Symphony, Op. 4: II. Playful Pizzacato
6 Kleine Klavierstucke, Op. 19: 6 Little Piano Pieces, Op. 19: II. Langsam
Symphony No. 8 in G Major, Op. 33: III. Allegretto grazioso - Molto vivace
Piano Quintet In A Major, Op. 114, D. 667, "Die Forelle" (Trout): IV. Thema with Variations
Sea Pictures, Op. 37: IV. Where Corals Lie
String Quartet No. 2 in F Major, Op. 41, No. 2: I. Allegro vivace
Piano Concerto in A Minor, Op. 16: II. Adagio
Messiah, HWV 56: Part I: For unto a child is born
4 Letzte Lieder (4 Last Songs), TrV 296: No. 1. Fruhling
Trumpet Concerto in E-Flat Major, Hob.VIIe:1: III. Finale
Petrushka (1946 version): Tableau I: Russian Dance
Symphony No. 5 in E Minor, Op. 64: III. Valse
2 Concert Etudes, S145/R6: No. 2. Gnomenreigen
Viola Concerto in G Major, TWV 51:G9: IV. Presto
Das Lied von der Erde: III. Von der Jugend
Bassoon Concerto in B-Flat Major, RV 501, "La notte": III. Il sonno
Bassoon Concerto in B-Flat Major, RV 501, "La notte": IV. Sorge l'aurora
Tristan und Isolde, Act III: Isoldes Liebestod
Les Troyens, H 133: Chasse royale et orage
Romeo et Juliette, Op. 17: Prologue: Latent Ancient Hatreds
Violin Concerto In D Minor, Op. 47: 1. Allegro moderato
Violin Concerto In D Minor, Op. 47: 2. Adagio di molto
Violin Concerto In D Minor, Op. 47: 3. Allegro, ma non tanto
Suite bergamasque, L. 75: III. Clair de lune
A Guided Tour of the Romantic Era, Vol. 5
Les Troyens: Act IV: Chasse royale et orage
Symphonie fantastique, Op. 14: I. Reveries - Passions: Largo - Allegro agitato e appassionato assai
Symphonie fantastique, Op. 14: II. Un Bal: Valse - Allegro non troppo
Harold in Italy, Op. 16, H. 68: II. Allegretto (March of the Pilgrims Singing the Evening Prayer)
Harold in Italy, Op. 16, H. 68: IV. Allegro frenetico (Orgy of Brigands. Memories of Scenes Past)
Romeo et Juliette, Op. 17: Love Scene: Night in the Capulet's Garden - Snatches of Music from the Ball
Harold en Italie, Op. 16, H. 68: III. Sérénade d’un montagnard des Abruzzes à sa maîtresse
Les Troyens, Act IV: Chasse royale et orage