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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd63e0be823ab474c0d394e080bbdef6ca0118be5af5786d88094d185969ca8. 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/6ba33418-6f3a-4277-8f08-b36e796933a4.json and https://artists.proofprofile.net/proofs/artist/6ba33418-6f3a-4277-8f08-b36e796933a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Musical Portrait of Chuck Close: Movement I
A Musical Portrait of Chuck Close: Movement II
Annees de pelerinage, 1st year, Switzerland, S160/R10: No. 6. Vallee d'Obermann (Valley of Obermann)
Annees de pelerinage, 1st year, Switzerland, S160/R10: No. 9. Les cloches de Geneve (The Bells of Geneva)
Annees de pelerinage, 3rd year, S163/R10: No. 4. Les jeux d'eau a la Villa d'Este (The Fountains of the Villa d'Este)
7 Fantasien, Op. 116: No. 4. Intermezzo in E Major
4 Ballades, Op. 10: No. 1 in D Minor, "Edward"
Dracula Suite: II. Carriage without a Driver
Dracula Suite: IV. Van Helshing and Dracula
Années de pèlerinage, 1ère année "Suisse", S. 160: No. 6, Vallee d'Obermann (Valley of Obermann)
Années de pèlerinage, 1ère année "Suisse", S. 160: No. 9, Les cloches de Geneve (the Bells of Geneva)
Années de pèlerinage, Book 3, S. 163: Annees de pelerinage, 3rd year, S. 163/R. 10: No. 4, Les jeux d'eau a la Villa d'Este (the Fountains of the Villa d'Este)
7 Fantasies, Op. 116: 7 Fantasien, Op. 116: No. 4, Intermezzo in E Major
Variationen zur Gesundung von Arinuschka
4 Impromptus, Op. 90, D. 899: No. 4 in A-Flat Major
Nocturne No. 1 in B-Flat Minor, Op. 9, No. 1
3 Gymnopédies: 3 Gymnopedies: No. 2, Lent et triste
Nocturne in B-Flat Minor, Op. 9 No. 1: Nocturne No. 1 in B-Flat Minor, Op. 9, No. 1
Gnossiennes: 3 Gnossiennes: Gnossienne No. 2
3 Gymnopédies: 3 Gymnopedies: No. 3, Lent et grave
The Well-Tempered Clavier, Book I: Prelude No. 1 in B Minor, BWV 869
The Well-Tempered Clavier, Book I: Fugue No. 1 in B Minor, BWV 869
Chromatic Fantasia and Fugue in D Minor, BWV 903: Fantasia
Chromatic Fantasia and Fugue in D Minor, BWV 903: Fugue
Gottes Zeit ist die allerbeste Zeit, BWV 106
El male rachamim: II. I, Who Pluck Flowers from the Hilltops
El male rachamim: III. I, Who Brought Corpses from the Mountains
El male rachamim: IV. I, Who Use but a Tiny Portion of the Words in the Dictionary
El male rachamim: V. I, Who Am Forced to Decipher the Riddles
Herzlich tut mich verlangen, BWV 727 (arr. M. Reger for piano)
Prelude in B Minor, BWV 544 (arr. A. Siloti for piano)
Das wohltemperierte Klavier I: Prelude No. 24 in B Minor, BWV 869
Das wohltemperierte Klavier I: Fugue No. 24 in B Minor, BWV 869
Gottes Zeit ist die allerbeste Zeit, BWV 106 (arr. G. Kurtag for piano)
El male rachamim: II. I, who pluck flowers from the hilltop
El male rachamim: III. I, who brought corpses from the mountains
El male rachamim: IV. I, who use but a tiny portion of the words in the dictionary
El male rachamim: V. I, who am forced to decipher riddles
Kinderszenen, Op. 15: No. 1, Von fremden Landern und Menschen
Kinderszenen, Op. 15: No. 2, Curiose Geschichte
Kinderszenen, Op. 15: No. 3, Hasche-Mann
Kinderszenen, Op. 15: No. 4, Bittendes Kind
Kinderszenen, Op. 15: No. 5, Glückes genug
Kinderszenen, Op. 15: No. 6, Wichtige Begebenheit
Kinderszenen, Op. 15: No. 9, Ritter vom Steckenpferd
Kinderszenen, Op. 15: No. 10, Fast zu ernst
Kinderszenen, Op. 15: No. 11, Fürchtenmachen
Kinderszenen, Op. 15: No. 12, Kind im Einschlummern
Kinderszenen, Op. 15: No. 13, Der Dichter spricht
Accumulation of Purpose: IV. Accumulation of Purpose
3 Pieces "Locations in Time": No. 1, Other
3 Pieces "Locations in Time": No. 2, Elegy
3 Pieces "Locations in Time": No. 3, Toward Night
Sacred Spaces: II. Hymn (This World Is My Home)
Amazing Grace (Arr. C. Price Walden for Piano)
Violin Partita No. 2 in D Minor, BWV 1004: V. Chaconne (Arr. J. Brahms for Piano Left Hand)
Prelude, Fugue & Allegro in E-Flat Major, BWV 998 (Arr. for Piano): I. Prelude
Prelude, Fugue & Allegro in E-Flat Major, BWV 998 (Arr. for Piano): II. Fugue
Prelude, Fugue & Allegro in E-Flat Major, BWV 998 (Arr. for Piano): III. Allegro
Wachet auf, ruft uns die Stimme, BWV 645 (Arr. F. Busoni for Piano)
11 Chorale Preludes, Op. 122: No. 10, Herzlich tut mich verlangen (Arr. F. Busoni for Piano)
Songs Without Words, Book 8, Op. 102: No. 4 in G Minor, MWV U 152 "The Sighing Wind"
Songs Without Words, Book 6, Op. 67: No. 3 in B-Flat Major, MWV U 102
Songs Without Words, Book 3, Op. 38: No. 2 in C Minor, MWV U 115
Songs Without Words, Book 3, Op. 38: No. 6 in A-Flat Major, MWV U 119
Songs Without Words, Book 8, Op. 102: No. 3 in C Major, MWV U 195 "Tarantelle"
Songs Without Words, Book 4, Op. 53: No. 1 in A-Flat Major, MWV U 143
Songs Without Words, Book 2, Op. 30: No. 6 in F-Sharp Minor, MWV U 110 "Venetianisches Gondellied No. 2"
Songs Without Words: No. 2, For the Left Hand
Songs Without Words: No. 3, Love Song - Duet
Songs Without Words, Book 1, Op. 19b: No. 2 in A Minor, MWV U 80
Songs Without Words, Book 1, Op. 19b: No. 1 in E Major, MWV U 86
Songs Without Words, Book 1, Op. 19b: No. 5 in F-Sharp Minor, MWV U 90
Songs Without Words, Book 1, Op. 19b: No. 6 in G Minor, MWV U 78 "Venetianisches Gondellied No. 1"
Songs Without Words, Book 5, Op. 62: No. 1 in G Major, MWV U 185 "May Breeze"
Songs Without Words, Book 6, Op. 67: No. 5 in B Minor, MWV U 184
Songs Without Words, Book 7, Op. 85: No. 4 in D Major, MWV U 190
The Seasons, Op. 37a, TH 135: XII. December "Christmas"