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 0x165e4db3651d82eb923864fef4763e189ce4c3f2f2a31315636208d909ec5825. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35aa7882-438c-4647-aee1-ca85d5bf16e1.json and https://artists.proofprofile.net/proofs/artist/35aa7882-438c-4647-aee1-ca85d5bf16e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Introduction & Russian Dance, Op. 113 No. 1
Cello Sonata in C Minor, WoO 2: I. Grave - Allegro
Cello Sonata in C Minor, WoO 2: II. Adagio
Cello Sonata in C Minor, WoO 2: III. Finale. Prestissimo
Piano Trio in E-Flat Major, Op. 63: I. Allegro
Piano Trio in E-Flat Major, Op. 63: II. Andantino
Piano Trio in E-Flat Major, Op. 63: III. Rondo. Allegro
Sonata in F Major, Op. 34 (Version for Cello & Piano): I. Larghetto - Allegro molto
Sonata in F Major, Op. 34 (Version for Cello & Piano): II. Andante
Sonata in F Major, Op. 34 (Version for Cello & Piano): III. Rondo. Allegro
3 Airs russes variés, Op. 72 (Version for Cello & Piano)
Cello Sonata in C Major, Op. 20: I. Allegro con brio
Cello Sonata in C Major, Op. 20: II. Adagio
Cello Sonata in C Major, Op. 20: III. Polonaise. Allegretto moderato
Cello Sonata in A Major, Op. 21: I. Allegro
Cello Sonata in A Major, Op. 21: II. Andantino quasi allegretto
Cello Sonata in A Major, Op. 21: III. Menuetto. Allegretto - Trio
Cello Sonata in A Major, Op. 21: IV. Rondo. Allegro ma non troppo
Cello Sonata in G Minor, Op. 125: I. Grave - Allegro
Cello Sonata in G Minor, Op. 125: II. Larghetto con moto
Cello Sonata in G Minor, Op. 125: III. Rondo allegretto