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 0x7d091390729589c08d5933dea6a2a6e886862ea16e675dd56065ffd4dcc7943a. 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/9ac81026-5011-4424-ba49-e63dafe49dea.json and https://artists.proofprofile.net/proofs/artist/9ac81026-5011-4424-ba49-e63dafe49dea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aria: Schlummert Ein, Ihr Matten Augen BWV 82
Orchestral Suite No. 3, BWV 1068: Air On A G String
Piano Sonata In E Flat Bwv 1031: 2. Siciliano
Aria: Erbarme dich (St Matthew Passion BWV 244)
15 Three-part Inventions, BWV 787/801: No. 11 in G minor, BWV 797
Piano Concerto No. 5 in F Minor BWV 1056: II Mov. Largo
The Well-Tempered Clavier: Book 1, BWV 846-869: 1. Prelude and Fugue in C Major BWV 846
Jesu Bleibet Meine Freude from Cantata BWV 147
Orfeo ed Euridice (Orphée et Eurydice), Wq. 30 - Arranged Sgambati: Dance of the Blessed Spirits (Mélodie)
Ach Ich Fuhl's From The Magic Flute K 620
Romanze Opus 118 No.5 In F Sharp: Andante
Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano (Transc. Wilhelm Kempff for Piano)
Romanze Opus 118 No. 5 In F Sharp: Andante
Trio Sonata in G, BWV 1038 Anh.II 154: 1. Largo - Played On Piano And Flute
Trio Sonata in G, BWV 1038 Anh.II 154: 2. Vivace - Played On Piano And Flute
Trio Sonata in G, BWV 1038 Anh.II 154: 3. Adagio - Played On Piano And Flute
Trio Sonata in G, BWV 1038 Anh.II 154: 4. Presto - Played On Piano And Flute
Sonata in D minor for Two Violins: 1. Allegretto - Played On Piano And Flute
Sonata in D minor for Two Violins: 2. Adagio - Played On Piano And Flute
Sonata in D minor for Two Violins: 3. Allegro - Played On Piano And Flute
Trio Sonata in C Major, Wq149: 1. Allegro Di Molto - Played On Piano And Flute
Trio Sonata in C Major, Wq149: 2. Andante - Played On Piano And Flute
Trio Sonata in C Major, Wq149: 3. Allegretto - Played On Piano And Flute
Musical Offering, BWV 1079: 1. Largo - Played On Piano And Flute
Musical Offering, BWV 1079: 2. Allegro - Played On Piano And Flute
Musical Offering, BWV 1079: 3. Andante - Played On Piano And Flute
Musical Offering, BWV 1079: 4. Allegro - Played On Piano And Flute
4 Mazurkas, Op. 30: No. 2 in B Minor: Allegretto
4 Mazurkas, Op. 30: No. 4 in C-Sharp Minor: Allegretto
3 Mazurkas, Op. 63: No. 3 in C-Sharp Minor: Allegretto
4 Mazurkas, Op. 67: No. 2 in G Minor: Cantabile
4 Mazurkas, Op. 67: No. 4 in A Minor: Moderato animato
4 Mazurkas, Op. 68: No. 4 in F Minor: Andantino
2 Pieces from Kuolema, Op. 44: 1. Valse Triste (Arr. for Piano)
6 Piano Pieces, Op. 118: 6. Intermezzo. Andante, largo e mesto (E-Flat Minor)
3 Romanzen, Op. 28: 2. Einfach (F-Sharp Major)
The Seasons, Op. 37a: 10. October: Autumn Song. Andante doloroso e molto cantabile
Peer Gynt Suite No. 1, Op. 46: I. Morning Mood (Arr. for Piano)
Lyric Pieces Book II, Op. 38: 2. Volksweise
5 Morceaux de fantaisie, Op. 3: 1. Elégie in E-Flat Minor
13 Preludes, Op. 32: No. 5 in G Major: Moderato
Ich ruf zu dir, Herr Jesu Christ, BWV 639 (Arr. Busoni for Piano)
Suite in E Minor, BWV 996: IV. Sarabande
French Suite No. 1 In D Minor Bwv 812: 4. Menuet 1
French Suite No. 1 In D Minor Bwv 812: 2. Courante
Improvisation on "Prelude in B Minor, BWV 855a"
Concerto for Keyboard, Strings, and Basso continuo No. 5 in F minor, BWV 1056: 2. Largo
Aria With 30 Variations, BWV 988 "Goldberg Variations": Aria
15 Two-part Inventions, BWV 772/786: No. 1 in C, BWV 772
15 Two-Part Inventions Bwv 772 /786: No. 15 In B Minor
Piano Concerto No. 3 in D, Bwv 1054: 2. Adagio e piano sempre
The Well-Tempered Clavier, Book I, BWV 846-869: Prelude No. 1 in C Major, BWV 846
Sonata nach Reinken in C Major, BWV 966: 4. (Allegro)
Musical Offering, BWV 1079: Canon perpetuus super thema regium
Sonata for Violin or Flute and Continuo, No.1 in G Minor BWV 1020: 2. Adagio