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 0x5c455473f2447a02ab4f50aab30ee4781c473e7eb07ceebe4a846959b50c3cd5. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54b6371c-da57-431b-a985-4c2a39e4f87b.json and https://artists.proofprofile.net/proofs/artist/54b6371c-da57-431b-a985-4c2a39e4f87b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leclair: Second Livre De Sonates, Op. 12
Sonata for 2 Violins in B Minor, Op. 12, No. 1 (arr. for 2 violas): I. Allegro ma poco
Sonata for 2 Violins in B Minor, Op. 12, No. 1 (arr. for 2 violas): II. Minuetto: Andante
Sonata for 2 Violins in B Minor, Op. 12, No. 1 (arr. for 2 violas): III. Allegro assai
Sonata for 2 Violins in E Major, Op. 12, No. 2 (arr. for 2 violas): I. Allegro ma poco
Sonata for 2 Violins in E Major, Op. 12, No. 2 (arr. for 2 violas): II. Largo
Sonata for 2 Violins in E Major, Op. 12, No. 2 (arr. for 2 violas): III. Minuetto: Non troppo allegro
Sonata for 2 Violins in E Major, Op. 12, No. 2 (arr. for 2 violas): IV. Allegro
Sonata for 2 Violins in D Major, Op. 12, No. 3 (arr. for 2 violas): I. Un poco andante
Sonata for 2 Violins in D Major, Op. 12, No. 3 (arr. for 2 violas): II. Un poco andante
Sonata for 2 Violins in D Major, Op. 12, No. 3 (arr. for 2 violas): III. Largo
Sonata for 2 Violins in D Major, Op. 12, No. 3 (arr. for 2 violas): IV. Gigue: Presto
Sonata for 2 Violins in A Major, Op. 12, No. 4 (arr. for 2 violas): I. Andante
Sonata for 2 Violins in A Major, Op. 12, No. 4 (arr. for 2 violas): II. Allegro moderato
Sonata for 2 Violins in A Major, Op. 12, No. 4 (arr. for 2 violas): III. Largo
Sonata for 2 Violins in A Major, Op. 12, No. 4 (arr. for 2 violas): IV. Vivace
Sonata for 2 Violins in G Minor, Op. 12, No. 5 (arr. for 2 violas): I. Allegro
Sonata for 2 Violins in G Minor, Op. 12, No. 5 (arr. for 2 violas): II. Andante
Sonata for 2 Violins in G Minor, Op. 12, No. 5 (arr. for 2 violas): III. Allegro assai
Sonata for 2 Violins in B-Flat Major, Op. 12, No. 6 (arr. for 2 violas): I. Allegro
Sonata for 2 Violins in B-Flat Major, Op. 12, No. 6 (arr. for 2 violas): II. Allegro moderato
Sonata for 2 Violins in B-Flat Major, Op. 12, No. 6 (arr. for 2 violas): III. Andante
Sonata for 2 Violins in B-Flat Major, Op. 12, No. 6 (arr. for 2 violas): III. Allegro non presto
Notturno in E-Flat Major, W. C40: II. Minuetto
Notturno in E-Flat Major, W. C40: II. Minueto II - I
Notturno in E-Flat Major, W. C40: I. Andante
Notturno in E-Flat Major, W. C40: II. Minuetto III - I
String Trio in E-Flat Major, Op. 3: VI. Finale. Allegro
Celebrate Beethoven: Rarities & World Premieres
String Trio in G Major, Op. 9, No. 1: Ii. Adagio, ma non tanto, e cantabile
Bach, J.C.: Sinfonie Concertanti, Vol. 3