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 0xd7e38a24a8281113bc693ee90e7a01020e30cb4693c144d51217521b72fe1256. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17d53bf9-ea7f-447c-8cc6-6d2ebae18acf.json and https://artists.proofprofile.net/proofs/artist/17d53bf9-ea7f-447c-8cc6-6d2ebae18acf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musica antiqua bohemica, vol. 17 (Mono Version)
Orchestral Trio in C Minor, Op. 4 No. 3: I. Allegro
Orchestral Trio in C Minor, Op. 4 No. 3: II. Andante
Orchestral Trio in C Minor, Op. 4 No. 3: III. Minuetto - Trio
Orchestral Trio in C Minor, Op. 4 No. 3: IV. Prestissimo
Orchestral Trio in B-Flat Major, Op. 1 No. 5: I. Presto
Orchestral Trio in B-Flat Major, Op. 1 No. 5: II. Lento
Orchestral Trio in B-Flat Major, Op. 1 No. 5: III. Minuetto - Trio
Orchestral Trio in B-Flat Major, Op. 1 No. 5: IV. Allegro
Orchestral Trio in G Major, Op. 1 No. 6: I. Allegro di molto
Orchestral Trio in G Major, Op. 1 No. 6: II. Larghetto
Orchestral Trio in G Major, Op. 1 No. 6: III. Minuetto - Trio
Orchestral Trio in G Major, Op. 1 No. 6: IV. Allegro
Orchestral Trio in C Major, Op. 1 No. 1: I. Allegro
Orchestral Trio in C Major, Op. 1 No. 1: II. Andante ma non adagio
Orchestral Trio in C Major, Op. 1 No. 1: III. Minuetto - Trio
Orchestral Trio in C Major, Op. 1 No. 1: IV. Allegro
Flute Concerto in E minor, L2. 4: I. Allegro con brio
Flute Concerto in E minor, L2. 4: II. Un poco andante
Flute Concerto in E minor, L2. 4: III. Presto
Sonata For Flute And Harpsichord: I. Adagio