Robert Fuchs may refer to: Robert Fuchs (composer) (1847–1927), Austrian composer and music teacher Robert Fuchs (general) (1895–1977), German general Robert Fuchs (footballer) (born 1975), Dutch
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 0x2607e73354655f5de30eb4bd898baee7d725c026c92e11cd4383b4269c412f6e. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96606efe-7c02-4991-b4db-9f3d0e192f89.json and https://artists.proofprofile.net/proofs/artist/96606efe-7c02-4991-b4db-9f3d0e192f89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Strings by: Elgar, Arensky, Tchaikovsky, Fuchs
Variations on a Theme by Tchaikovsky, Op. 35a: III. Var. II. Allegro non Troppo
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 0x2346122b7ddafd798c226cfa8a71c01184bf3c1b174a0e6f986477506bf12fdf. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NLY332201001.
Pieces for piano Op 32 & 47 Robert Fuchs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d100ee60f3a45a2da5191c4d4f780b258c97da1aa80992dd0e99f351d77732. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZTAU2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e4d03142335c58c6f3a25d8be6eea15ab005fa99559d4de41b16351c75d68d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZTAU2300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fb354d865b84ddda5f46e87790fb9c180f303cc2c17354f3a8df060bc0adf2. 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/QZTAU2300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a33034925d2f6078c9b5ab8b132cfc261c09c95b50bb49b2626d0e7454f7b0. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZTAU2300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e1320414fd2218e3383b92f57376b79e0815e0d53ed38bb4ca52e985906f4f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZTAU2300098.
Robert Fuchs: Works for Violin, Viola & Piano
Fuchs: The Complete Works for Cello & Piano
Fuchs: Piano Trio, Violin Sonata, Viola Phantasiestücke
Mondaufgang. Chorlieder für gemischte Stimmen. Pt. songs for mixed voices
Serenade No. 1 in D Major, Op. 9: I. Andante
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Serenade No. 1 in D Major, Op. 9: II. Tempo di menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe44ae50661fc4ffd07cd7c237c87d86eeb49afc863bbfdf4390f77f8e2469f6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKI191011902.
Serenade No. 1 in D Major, Op. 9: III. Allegro scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24fc4285eeee4d2812657438cde6acde66040eacd4893121bd9c0d1099d6f1e. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/HKI191011903.
Serenade No. 1 in D Major, Op. 9: IV. Adagio - Con molto espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd130cefdbefc1984d8d6ebbbac4f65940444c24442c07d0423b2786c433ff48c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKI191011904.
Serenade No. 1 in D Major, Op. 9: V. Finale: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b53c131d29decd5f8e734824a2969cacb35f3999f223346658daabb7012fad. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKI191011905.
Serenade No. 2 in C Major, Op. 14: I. Allegretto
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Serenade No. 2 in C Major, Op. 14: II. Larghetto
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Serenade No. 2 in C Major, Op. 14: III. Allegro risoluto
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Serenade No. 2 in C Major, Op. 14: IV. Finale: Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1488ec6dba818fb31ce400063cce8f0aa7a2934985e4531c393de193d5e6b43f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/HKI191011909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2276f464dc09b525357e8387942b8f8810be376b01255ed8e4e1799535a65fe9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI191011910.
Robert Fuchs: Complete Violin Sonatas Vol. 2
Fuchs: Piano Concerto, Op. 27 & Serenade No. 5, Op. 53
Fuchs & Kiel: Piano Concertos (Hyperion Romantic Piano Concerto 31)
Piano Concerto in B-Flat Minor, Op. 27: II. Andante sotenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afa928e8b73d34e201b1cb7482c3a67792ae9e4d31bedd1159fbc974388f281. 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/GBAJY0335402.
Robert Fuchs: Complete Violin Sonatas Vol. 1
Robert Fuchs: Erste Symphonie in C-Dur, op. 37, Zweite Symphonie in Es-Dur, op. 45
Fuchs, R.: 6 Fantasy Pieces / Viola Sonata in D Minor / Piano Trio in F-Sharp Minor
Fuchs: Piano Sonata Op. 108 / Jugendklange / 12 Waltzes
Romberg, Fuchs & Stanford: Clarinet Quintets
Clarinet Quintet in E-Flat Major, Op. 57: III. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e8d2f1c99267abf8f0147950b397f523a807c2c123422dfff7e134a6405389. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBAJY9247903.
Rossini: Il barbiere di siviglia: Largo al factotum: "Largo al factotum"