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 0x19bfff0f4aca30e1241ca14c16a32e35f212b966891183542935f0d88de9891e. 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/218a8c55-f743-4211-86a3-6e6820e7e3ed.json and https://artists.proofprofile.net/proofs/artist/218a8c55-f743-4211-86a3-6e6820e7e3ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Judith LeClair plays Schumann, Osbourne, Telemann, Reynolds, Weber and Ravel
Five Pieces in Folk Style, Op. 102: i. Mit Humor
Five Pieces in Folk Style, Op. 102: ii. Langsam
Five Pieces in Folk Style, Op. 102: iii. Nicht schnell, mit viel Ton zu spielen
Five Pieces in Folk Style, Op. 102: iv. Nicht zu rasch
Five Pieces in Folk Style, Op. 102: v. Stark und markiert
Quartet in D Minor for Flute, Oboe, Bassoon and Continuo: i. Andante
Quartet in D Minor for Flute, Oboe, Bassoon and Continuo: ii. Vivace
Quartet in D Minor for Flute, Oboe, Bassoon and Continuo: iii. Largo
Quartet in D Minor for Flute, Oboe, Bassoon and Continuo: iv. Allegro
Fantasy Etudes for Bassoon and Percussion: i. Dialogue
Fantasy Etudes for Bassoon and Percussion: ii. Caprice
Fantasy Etudes for Bassoon and Percussion: iii. Rhapsody
Fantasy Etudes for Bassoon and Percussion: iv. Intermezzo
Fantasy Etudes for Bassoon and Percussion: v. Reminiscence
Andante and Hungarian Rondo, Op. 35/J.158 for Bassoon and Piano
Pièce en forme de habanera for Bassoon and Piano
Works for Bassoon: Boutry • Andrès • Saint-Saëns • Milde • Glière
Chants d'arrière-saison for Bassoon and Harp: I. Andantino
Chants d'arrière-saison for Bassoon and Harp: II. Allegro
Chants d'arrière-saison for Bassoon and Harp: III. Larghetto
Chants d'arrière-saison for Bassoon and Harp: IV. Adagietto
Chants d'arrière-saison for Bassoon and Harp: V. Andante
Chants d'arrière-saison for Bassoon and Harp: VI. Allegretto
Chants d'arrière-saison for Bassoon and Harp: VII. Moderato
Sonata for Bassoon and Piano in G Major, Op. 168: I. Allegretto moderato
Sonata for Bassoon and Piano in G Major, Op. 168: II. Allegro scherzando
Sonata for Bassoon and Piano in G Major, Op. 168: III. Molto adagio - Allegro moderato
Andante and Rondo for Bassoon and Piano, Op. 25: I. Andante
Andante and Rondo for Bassoon and Piano, Op. 25: II. Rondo
Humoresque for Bassoon and Piano Op. 35, No. 8
Summer Music, Op. 31: I. Slow and Indolent
Summer Music, Op. 31: III. Lively, Still Faster
Summer Music, Op. 31: IV. With Motion, as Before
Summer Music, Op. 31: V. Joyous and Flowing
Bassoon Concerto in B-Flat Major, K.191: I. Allegro
Bassoon Concerto in B-Flat Major, K.191: II. Andante ma adagio
Bassoon Concerto in B-Flat major, K.191: III. Rondo - Tempo di menuetto
Summer Music, Op. 31: I. Slow and indolent
Summer Music, Op. 31: Lively, still faster