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 0xe5624caafe0ffc7e2e216aff2f284a34817fb59c4760770050149d658ea93fb3. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43b7fb06-95d5-4d08-8c57-95a9c869b9ec.json and https://artists.proofprofile.net/proofs/artist/43b7fb06-95d5-4d08-8c57-95a9c869b9ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brahms: Double Concerto, Op. 102 & Horn Trio, Op. 40
Brahms: Horn Trio in E-Flat Major, Op. 40: I. Andante - Poco più animato
Brahms: Horn Trio in E-Flat Major, Op. 40: II. Scherzo. Allegro
Brahms: Horn Trio in E-Flat Major, Op. 40: III. Adagio mesto
Brahms: Horn Trio in E-Flat Major, Op. 40: IV. Finale. Allegro con brio
Brahms: Double Concerto for Violin and Cello in A Minor, Op. 102: I. Allegro
Brahms: Double Concerto for Violin and Cello in A Minor, Op. 102: II. Andante
Brahms: Double Concerto for Violin and Cello in A Minor, Op. 102: III. Vivace non troppo
Winds & Strings: Spohr, Ibert, Janacek & Widmann (Live)
Nonet in F Major, Op. 31: I. Allegro - Live
Nonet in F Major, Op. 31: II. Scherzo. Allegro - Live
Nonet in F Major, Op. 31: III. Adagio - Live
Nonet in F Major, Op. 31: IV. Finale. Vivace - Live
2 Interludes: I. Andante Expressivo - Live
Mládi, JW 7/10: I. Andante - Allegro - Live
Mládi, JW 7/10: II. Moderato - Andante sostenuto - Live
Mládi, JW 7/10: III. Allegro - Vivace - Live
Mládi, JW 7/10: IV. Con Moto - Allegro animato - Live
24 Duos, Book 2: No. 1, Capriccio - Live
24 Duos, Book 2: No. 3, Petit Ballet Méchanique (Pas De Deux) - Live
24 Duos, Book 2: No. 5, Moderato Un Poco Allegretto - Live
24 Duos, Book 2: No. 6, Dancing With Fifths and Sixths - Live
24 Duos, Book 2: No. 7, Anxious, Hesitant - Live
24 Duos, Book 2: No. 8, Valse Bavaroise - Live
24 Duos, Book 2: No. 10, Deciso Con Brio - Live
24 Duos, Book 2: No. 11, Toccatine All'inglese - Live
Dvořák: Serenade in D Minor, B. 77; String Quartet No. 13 in G Major, B. 192 (Live Recordings from Spannungen Festival 2008)
Serenade in D Minor, B. 77: I. Moderato, quasi marcia - Live
Serenade in D Minor, B. 77: II. Minuetto
Serenade in D Minor, B. 77: III. Andante con moto - Live
Serenade in D Minor, B. 77: IV. Finale. Allegro molto - Live
String Quartet No. 13 in G Major, B. 192: I. Allegro moderato - Live
String Quartet No. 13 in G Major, B. 192: II. Adagio ma non troppo - Live
String Quartet No. 13 in G Major, B. 192: III. Molto vivace - Live
String Quartet No. 13 in G Major, B. 192: IV. Finale. Andante sostenuto - Allegro con fuoco - Live
Dietrich, A.: Symphony, Op. 20 / Violin Concerto, Op. 30 / Introduction and Romance