1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9f03045c54712e1559ad83f0659b29ba7daab0136cfd393525de8fb8dafe29. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ad8a8d9-a15c-49cd-b187-98b42ed91425.json and https://artists.proofprofile.net/proofs/artist/1ad8a8d9-a15c-49cd-b187-98b42ed91425.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ferenc Fricsay conducts Béla Bartok - The early RIAS recordings (live and studio recordings from Berlin, 1950-1953)
Mozart Edition, Vol. 02 - Piano & Violin Concertos
Haydn, Beethoven, Dvořák & Others: Works Featuring Cello
The Four Seasons, Spring, Violin Concerto in E Major, RV 269, Op. 8 No. 1: I. Allegro - Live
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Violin Concerto No. 1 in B-Flat Major, K. 207 (Cadenzas: Perlman): I. Allegro moderato
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Sorochinsky Fair: Hopak (Arr. Rachmaninoff for Violin & Piano)
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Wild Swans Suite - Version For Violin And Piano: II. Eliza Aria
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Hungarian Dance No. 5 in G Minor, WoO 1 No. 5 (Arr. For Violin)
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The Four Seasons, Violin Concerto in F Minor, Op. 8/4, RV 297 "Winter": II. Largo
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Violin Concerto No. 2 in E, BWV 1042: 1. Allegro
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Violin Concerto No. 2 in B Minor, Op. 7, MS. 48: III. Rondo à la clochette "La campanella". Allegretto moderato - Excerpt
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Partita for Violin Solo No. 3 in E Major, BWV 1006: I. Preludio
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Recomposed by Max Richter: Vivaldi, the Four Seasons: Spring 1
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Double Concerto for 2 Violins, Strings, and Continuo in D Minor, BWV 1043: II. Largo ma non tanto
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24 Caprices for Violin, Op. 1, MS. 25: No. 24 in A Minor
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"Ich steh mit einem Fuß im Grabe", Cantata BWV 156: Sinfonia (Arr. For Violin, Strings And Continuo)
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Preghiera (Arr. by Fritz Kreisler from Piano Concerto No. 2 in C Minor, Op. 18, 2nd Movement)
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Six Romances, Op. 6, TH 93: No. 1, Do Not Believe, My Friend. Moderato assai (Arr. for Violin and Piano)
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I giorni (Arr. For Violin, Piano And String Orchestra)
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Yumeji's Theme - From "In The Mood For Love"
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St. Matthew Passion, BWV 244 / Part Two: No. 39 Aria: "Erbarme dich" (Arr. For Oboe d’amore, Violin, Strings And Continuo)
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Mussorgsky, Mozart & Bruch: Orchestral Works
Fricsay: Complete Recordings on Deutsche Grammophon, Vol. 1: Orchestral Works (Pt. 1)
Bartók: Violin Concerto No. 2, Sz. 112 (Remastered 2023)
Beethoven, Bruch, Mozart & Tchaikovsky: Violin Concertos
Bartók: Violin Concerto No.2; Dance Suite; Cantata Profana
Bach: Concerto for Three Harpsichords, BWV 1064 & Violin Concerto, BWV 1042 (Mono Version)
Bruch: Violin Concerto No. 1, Op. 26 - Mozart: Violin Concerto No. 1, K. 207
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Johann Sebastian Bach: Konzert für Cembalo & Orchester, F-Moll, BWV 1056 - Konzert für 3 Cembali & Streichorchester, D-Moll, BWV 1063 - Konzert für Flöte, Violine, Cembalo & Streichorchester,
Konzert für Cembalo & Orchester, F-Moll, BWV 1056: I. (Allegro)
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Konzert für Cembalo & Orchester, F-Moll, BWV 1056: II. Largo
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Detmolder Archivschätze: Zum 75-jährigen Bestehen der Hochschule für Musik Detmold (Live)
Géza Anda & Tibor Varga: The Music of Béla Bartók (Recorded 1953 & 1955)