Wenzel Maria Fuchs (born 1963 in Innsbruck, Austria) is an Austrian clarinetist. He studied clarinet at the Innsbruck Conservatory with Walter Kefer and at the Vienna Music Academy with Peter Schmidl
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d264f0185db38b76a402e92136902d314ecfa4a2a3be1ad6e6dd5bfad1b659. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f78098a-4177-4603-950f-ab367b897dcb.json and https://artists.proofprofile.net/proofs/artist/0f78098a-4177-4603-950f-ab367b897dcb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Horn Concerto in E-Flat Major, K.495: I. Allegro maestoso
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd236f389a3ce45f0dd166da0606b153d31e47ea429f06df73b5d6ab8319569a2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2293701.
Horn Concerto in E-Flat Major, K.495: II. Romance. Andante cantabile
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Horn Concerto in E-Flat Major, K.495: III. Rondo. Allegro vivace
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Sinfonia concertante in E-Flat Major, K.297b: I. Allegro
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Sinfonia concertante in E-Flat Major, K.297b: III. Andante con variazioni
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La Bella Cubana (Arr. for Solo Winds and Orchestra by Jorge Aragón)
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Guantanamera (Arr. for Horn, Trumpet and Orchestra by Jorge Aragón)
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Sinfonia concertante in E-Flat Major, K.297b: II. Adagio
REGER: Clarinet Quintet, Op. 146 / String Quartet, Op. 109
A Guided Tour of the Romantic Era, Vol. 16
Diamonds Are a Girl's Best Friend (From "Gentlemen Prefer Blondes")
Die 12 Cellisten der Berliner Philharmoniker
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3181cf6995b9117ca7f0405c8b04c23d2992a16a74396973c55b4cb54953e02. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0401090.
The Man with the Harmonica (From "Once Upon a Time in America")
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2550c5507307bb0771e26a00b2b675c12a5c628937a37727ec8820fcf4377b06. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0401105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdae91bb28cb2f02b54cc821e9bc7a8d0f2a58c7d4394241ca68187764cfc0d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0401093.
Lullaby of Birdland (From "The Fabulous Baker Boys")
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Family Portrait (From "Harry Potter and the Philosopher's Stone")
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Poverty / Deborah's Theme (From "Once Upon a Time in America")
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377229c845d1b5a538732ea8095a3aabb80a6407f85f9a519658b2812af1232e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0401092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99d7568fd0713aeb162d4cb14d2c5fc634fc9030a03969bcbf9d53b859ccf38. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0401103.
I Could Have Done More (From "Schindler's List")
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Windmills of Your Mind (From "The Thomas Crown Affair")
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The Bare Necessities (From "The Jungle Book")
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7f5f2eeed3ddb9382c2fe92834fdffc4a0e70252c9e51c3afb86a1215252eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0401100.
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Perfume: The Story of a Murderer: No. 9, Meeting Laura
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Wolfgang Amadeus Mozart - Bläserkonzerte
Konzert für Fagott und Orchester in B-Dur, KV 191: I. Allegro
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Clarinet Quartet in E-Flat Major, Op. 1: I. Allegro moderato
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Clarinet Quartet in E-Flat Major, Op. 1: II. Adagio molto
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Clarinet Quartet in E-Flat Major, Op. 1: III. Andantino un poco mosso
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Clarinet Quartet in E-Flat Major, Op. 1: IV. Allegro con brio
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Violin Sonata in D Major, Op. 6: IV. Allegro vivace
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Cavallini, Von Weber: Clarinet Concertos
Concerto for Clarinet and Orchestra in A Major, K. 622: I. Allegro
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Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
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Concerto for Clarinet and Orchestra in A Major, K. 622: III. Rondo: Allegro
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Mozart: Concerto for Clarinet and Orchestra in A Major, K. 622, II. Adagio
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Ravel - Le Jardin féérique (Œuvres de musique de chambre)
Introduction et Allegro in G-Flat Major, M. 46
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Quatuor à cordes in F Major, M. 35: No. 1, Allegro moderato
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Ma mère l'oye, M. 60: No. 5 in C Major, Le jardin féerique - Arr. pour flûte, clarinette, harpe et quartuor à cordes
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