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 0xcbfbcbcd7645401fc6518df78e8eeca1b211b34044cd2679dd66fae8628e0cbe. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0688c4ba-0aed-4637-b84a-e91d41a00c7e.json and https://artists.proofprofile.net/proofs/artist/0688c4ba-0aed-4637-b84a-e91d41a00c7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Two-Part Invention No. 1 in C Major, BWV 772 (Arr. for Violin & Bass)
Two-Part Invention No. 4 in D Minor, BWV 775 (Arr. for Violin & Bass)
Two-Part Invention No. 2 in C Minor, BWV 773 (Arr. for Violin & Bass)
Two-Part Invention No. 8 in F Major, BWV 779 (Arr. for Violin & Bass)
Two-Part Invention No. 10 in G Major, BWV 781 (Arr. for Violin & Bass)
Two-Part Invention No. 15 in B Minor, BWV 786 (Arr. for Violin & Bass)
Two-Part Invention No. 6 in E Major, BWV 777 (Arr. for Violin & Bass)
Fantasia for Violin Without Bass No. 1 in B-Flat Major, TWV 40:14
Fantasia for Violin Without Bass No. 4 in D Major, TWV 40:17
Fantasia for Violin Without Bass No. 5 in A Major, TWV 40:18
Tzigane, M. 76 (Version for Violin & Piano)
Concert Duo for Violin and Bass: I. Movement
Concert Duo for Violin and Bass: IV. Finale
Sonata for Solo Violin No. 5 (à Mathieu Crickboom) in G Major, Op. 27: I. L’aurore
Sonata for Solo Violin No. 5 (à Mathieu Crickboom) in G Major, Op.27: II. Danse Rustique
44 Duets for Two Violins, Sz. 98: Book III: No. 35, Rutén Kolomejka
44 Duets for Two Violins, Sz. 98: Book IV: No. 43, Pizzicato
44 Duets for Two Violins, Sz. 98: Book IV: No. 39, Szerb Tánc