Ernst Heinrich Krenek (, 23 August 1900 – 22 December 1991) was an Austrian, later American, composer. He explored atonality and other modern styles and wrote a number of books, including Music Here a
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 0x08b65c519f28e15884e5882d47d2fedd78697b481ce55e299a48d6b21c3ef3b2. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8109ba0b-e01b-439a-a028-59d10b6ed26d.json and https://artists.proofprofile.net/proofs/artist/8109ba0b-e01b-439a-a028-59d10b6ed26d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Serenade - Works for Clarinet and Strings by Krenek, Gál and Penderecki
Serenade for Clarinet Quartet in B Major, Op. 4: II. Adagio ma non troppo
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Serenade for Clarinet Quartet in B Major, Op. 4: V. Allegretto grazioso
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Serenade for Clarinet, Violin and Cello, Op. 93: I. Cantabile. Moderato
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Serenade for Clarinet, Violin and Cello, Op. 93: II. Burletta. Vivace ma non troppo
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Serenade for Clarinet, Violin and Cello, Op. 93: III. Intermezzo. Andantino
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Serenade for Clarinet, Violin and Cello, Op. 93: IV. Giocoso. Allegro molto moderato
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Serenade for Clarinet Quartet in B Major, Op. 4: I. Moderato
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1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Serenade for Clarinet Quartet in B Major, Op. 4: III. Allegro molto
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Serenade for Clarinet Quartet in B Major, Op. 4: IV. Langsamer
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Serenade for Clarinet Quartet in B Major, Op. 4: VI. Allegro vivace
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Ernst Krenek: Reisebuch aus den österreichischen Alpen
Krenek: Orpheus und Eurydike, Op. 21 (Live)
Krenek: Complete Piano Concertos, Vol. 2
Krenek: Complete Piano Concertos, Vol. 1
GAIA Music Festival 2012: Music of Krenek & Webern (Live)
Ernst Krenek: Works for Violin (Sonata for Solo Violin No. 1 & No. 2, Sonata No. 2 for Violin and Piano & Triophantasie)
Krenek: Symphony No. 4 - Concerto grosso No. 2
Krenek, E.: String Quartets Nos. 1 and 7
Lamento della Ninfa: II. Amor dicea il ciel
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Krenek, E.: 7 Easy Pieces / 5 Short Pieces / Symphonic Elegy / Adagio and Fugue / Symphonic Piece / Brazilian Sinfonietta
Krenek, E.: Piano Sonatas Nos. 2 and 4 / George Washington Variations / Echoes From Austria
KRENEK, E.: String Quartets Nos. 3 and 5 (Petersen Quartet)
Krenek, E.: Alpbach Quintet / Symphonische Musik No. 1
Krenek, E.: Piano Works - 12 Variations in 3 Movements / 11 Piano Pieces / Echoes From Austria / Piano Sonata No. 7
Krenek, E.: Diktator (Der) / Schwergewicht, Oder Die Ehre Der Nation / Das Geheime Konigreich [Opera]
Krenek: Symphony No. 3, Op. 16 - Potpourri, Op. 54
Krenek: Reisebuch aus den osterreichischen Alpen, Op. 62
Krenek: Reisebuch aus den österreichischen Alpen; Fiedellieder (Wolfgang Holzmair – The Philips Recitals, Vol. 9)
Krenek: Der Sprung über den Schatten, Op. 17 (Live)
Darmstadt Aural Documents, Box 1 - Composers-Conductors