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 0xe0d685edc897959c189161af7b04083de960faaf8b70512beb188f45a807bd2c. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd66dc94-434d-4a5b-b42f-02046c7902ba.json and https://artists.proofprofile.net/proofs/artist/cd66dc94-434d-4a5b-b42f-02046c7902ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mendelssohn Trío núm. 1 en Re Menor - Molto allegro agitato
Mendelssohn Trío núm. 1 en Re Menor - Andante con moto tranquillo
Mendelssohn Trío núm. 1 en Re Menor - Scherzo: Leggiero e vivace
Mendelssohn Trío núm. 1 en Re Menor - Finale: Allegro assai appassionato
Tchaikovsky, Pezzo elegiaco, Trío en La Menor, op. 50
Beethoven Minueto (Trío XIII, op. 38, Septimino)
Beethoven Adagio Cantabile (Sonata Patetica)
Chopin & Schumann & Rachmaninoff & Villa-Lobos & Ravel & Fauré & Guridi
Rachmaninoff Trío elegíaco núm. 1, en Sol menor
Villa-Lobos: Aria, de la Bachiana Brasileira núm. 5
Gounod Ave María sobre el Preludio en Do de Bach
Saint-Saëns El Cisne, del Carnaval de los animales
Tchaikovsky Canzonetta, del Concierto para violín op. 35
Grieg Muerte de Ase, de la Suite Peer Gynt
Grieg Danza de Anitra, de la Suite Peer Gynt
Fauré Siciliana, de Pelléas et Mélisande
Smetana Trío en Sol menor: Moderato assai
Smetana Trío en Sol menor: Allegretto, ma non agitato
Smetana Trío en Sol menor: Finale. Presto
Sonata Arpeggione en La Menor: Allegro Moderato
Sonata Arpeggione en La Menor: Adagio. Allegretto
Sonata en Sol Menor: Menuetto. Allegro vivace
Sonata en Sol Menor: Finale. Allegro moderato