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 0x4e9df50ae4b726a273820c69f5ab068c306246e5e2e36aba3416b7eaeb521ac6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6740cdd-03d5-4b55-a6ff-3d881100a310.json and https://artists.proofprofile.net/proofs/artist/e6740cdd-03d5-4b55-a6ff-3d881100a310.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart: Piano Concerto No. 24 in C Minor, K. 491: I. Allegro
North German Radio Philharmonic Orchestra
Mozart: Piano Concerto No. 24 in C Minor, K. 491: II. Larghetto
Mozart: Piano Concerto No. 24 in C Minor, K. 491: III. Allegretto
Mozart: Piano Concerto No. 27 in B-Flat Major, Op. 17, K. 595: I. Allegro
Mozart: Piano Concerto No. 27 in B-Flat Major, Op. 17, K. 595: II. Larghetto
Mozart: Piano Concerto No. 27 in B-Flat Major, Op. 17, K. 595: III. Allegro
Mozart: Piano Concertos Nos. 8 "Lützow", 9 "Jeunehomme", 12 & 14
Mozart: Piano Concerto No. 14 in E-Flat Major, K. 449: I. Allegro vivace
Mozart: Piano Concerto No. 14 in E-Flat Major, K. 449: II. Andantino
Mozart: Piano Concerto No. 14 in E-Flat Major, K. 449: III. Allegro ma non troppo
Mozart: Piano Concerto No. 12 in A Major, K. 414: I. Allegro
Mozart: Piano Concerto No. 12 in A Major, K. 414: II. Andante
Mozart: Piano Concerto No. 12 in A Major, K. 414: III. Allegretto
Mozart: Piano Concerto No. 8 in C Major, K. 246 "Lützow": I. Allegro aperto
Mozart: Piano Concerto No. 8 in C Major, K. 246 "Lützow": II. Andante (Cadenza by Zacharias)
Mozart: Piano Concerto No. 8 in C Major, K. 246 "Lützow": III. Rondeau. Tempo di menuetto (Cadenza by Zacharias)
Mozart: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": I. Allegro
Mozart: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": II. Andantino
Mozart: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": III. Rondeau. Presto
Mozart: Piano Sonata No. 15 in C Major, K. 545: I. Allegro
Mozart: Piano Concerto No. 26 in D Major, K. 537 "Coronation": I. Allegro (Excerpt)
Piano Quartet in G Minor, K. 478: II. Andante
Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante
Piano Concerto No. 5 in E-Flat Major, Op. 73 'Emperor': II. Adagio un poco mosso
Piano Quintet in E-Flat Major, Op. 44: II. In modo d'una marcia
Mozart: Piano Concerto No. 19 in F Major, K. 459: I. Allegro
Grieg: Morning Mood - Albinoni: Adagio - Gluck: Dance of the Blessed Spirits - Bach: Jesu, Joy of Man's Desiring & Badinerie - Charpentier: Te Deum - Bizet: Les toréadors & Other Classical Hi
Piano concerto No. 3 in C Minor, Op. 37: II. Largo
Piano Concerto No. 21 in C Major, K.467: II. Andante
Mozart: Piano Sonata No. 11 in A Major, Op. 6 No. 2, K. 331 "Alla Turca": III. Allegretto. Turkish March
Beethoven: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco mosso
Piano Concerto No. 5, Op. 73: II. Adagio un poco mosso -
Mozart: Piano Concerto No. 23 in A Major, K. 488: I. Allegro
Mozart: Piano Concerto No. 23 in A Major, K. 488: II. Andante
Mozart: Piano Concerto No. 23 in A Major, K. 488: III. Allegro assai
Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: I. Allegro (Cadenza by Zacharias)
Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: II. Andante