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 0x1705901fca6a6c3fd58737829613ef9ac1aab7129b72d58c8de57564fdb98643. 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/d78f69ff-a297-474a-933a-19e00bc12cf3.json and https://artists.proofprofile.net/proofs/artist/d78f69ff-a297-474a-933a-19e00bc12cf3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cello Sonata in C Major, Op. 65: I. Dialogo
Cello Sonata in C Major, Op. 65: II. Scherzo-pizzicato
Cello Sonata in C Major, Op. 65: III. Elegia
Cello Sonata in C Major, Op. 65: IV. Marcia
Cello Sonata in C Major, Op. 65: V. Moto Perpetuo
4 Short Pieces for Violin & Piano, H. 104: 4 Short Pieces: No. 2, Spring Song (Version for cello and piano)
Cello Sonata: II. Adagio ma non troppo - Molto allegro e agitato
4 Short Pieces: No. 2. Spring Song (version for cello and piano)
Tecchler's Cello: From Cambridge to Rome
Piano Trio in D Major, Op. 70 No. 1 "Ghost": I. Allegro vivace e con brio
Piano Trio in D Major, Op. 70 No. 1 "Ghost": II. Largo assai ed espressivo
Piano Trio in D Major, Op. 70 No. 1 "Ghost": III. Presto
Six Cello Sonatas, Book 4, Sonata No. 4 for Two Cellos in G Major: I. Andante
Six Cello Sonatas, Book 4, Sonata No. 4 for Two Cellos in G Major: II. Adagio
Six Cello Sonatas, Book 4, Sonata No. 4 for Two Cellos in G Major: III. Allegro prestissimo
Piano Trio in D Major, Op. 70, No. 1 "Ghost": I. Allegro vivace e con brio
Piano Trio in D Major, Op. 70, No. 1 "Ghost": II. Largo assai ed espressivo
Piano Trio in D Major, Op. 70, No. 1 "Ghost": III. Presto
Six Cello Sonatas, Book 4, Sonata for Two Cellos in G Major, No. 4: I. Andante
Six Cello Sonatas, Book 4, Sonata for Two Cellos in G Major, No. 4: II. Adagio
Six Cello Sonatas, Book 4, Sonata for Two Cellos in G Major, No. 4: III. Allegro prestissimo
7 Variations on "Bei Männern, welche Liebe fühlen", WoO 46
Adagio & Allegro, Op. 70 (Version for Cello & Piano)
Variations concertantes in D Major, Op. 17, MWV Q 19
Auf dem Strom, Op. 119, D. 943 (Version for Voice, Cello & Piano)
Introduction & Polonaise brillante in C Major, Op. 3
Variations on a Theme of Rossini, H. 290
Kiss on Wood (Version for Cello & Piano)
Vocalise in C-Sharp Minor, Op. 34 No. 14 (Arr. for Cello & Piano)
Carnival of the Animals, R. 125: No. 13, The Swan (Version for Cello & Piano)
The Armed Man - A Mass For Peace: XII. Benedictus
Choral Hymns from the Rig Veda, 3rd Group, Op. 26: No. 1. Hymn to the Dawn (arr. J. Lloyd Webber for 4 cellos and harp)
Madrigals, Book 7: Interrotte speranze, eterna fede, SV 132 (arr. J. Lloyd Webber for 3 cellos and harp)
Concerto for Cello and Strings: II. Longing
Concerto for Cello and Strings: I. Turbulent
Concerto for Cello and Strings: III. Radiant
Cello Concerto: III. Allegretto deciso, alla marcia
Cello Concerto: II. Threnody. Lento calmato - Assai teneramente
A Requiem for Stephen: Into a Greater Light
A Festival of Nine Lessons & Carols: The Centenary Service
Cello Concerto: I. Fantasia. Tranquillo - Assai andante
Howells: Cello Concerto, An English Mass
Cello Concerto: III. Finale. Allegro vigoroso