Johann Caspar Ferdinand Fischer (some authorities use the spelling Johann Kaspar Ferdinand Fischer) (1656 27 August 1746) was a German Baroque composer. Johann Nikolaus Forkel ranked Fischer as one o
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 0x400ffd47122cd1010857f73f04d272c76d6457e6ab78753fd76f4ee127f44393. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5efdfd80-e622-421b-8ea3-f825da3dc591.json and https://artists.proofprofile.net/proofs/artist/5efdfd80-e622-421b-8ea3-f825da3dc591.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Johann Caspar Ferdinand Fischer: Musica Sacra
Fischer, J.C.F.: Jubilate Deo / Missa Sancti Dominici / Vesperae, Seu Psalmi Vespertini / Lytaniae Lauretanae
Overture (Suite) in A Minor, Op. 1, No. 2: I. Ouverture
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c70716bfd9c6dca1a69af4c2852e5671bd9279106b3eca72cd0560de032798b. 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/DEB200715001.
Overture (Suite) in A Minor, Op. 1, No. 2: III. Gigue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b490675daea002fc13e476c02f3a8870623127d377a65c31019110f4679646a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB200715003.
Overture (Suite) in A Minor, Op. 1, No. 2: V. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6daffacb241a00719555a91028073e427298c26aeb844cc49e17cc4922f3268. 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/DEB200715005.
Overture (Suite) in C Major, Op. 1, No. 1: IV. Rigaudon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904909803bf30ddea212fe340d0010c6c2fd29c3a60eede7fbab507351e76cb2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB200715009.
Overture (Suite) in C Major, Op. 1, No. 1: V. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f36bedbf9aa4f9f9abd70508e40b890876031467acb5b71d8f6c208f19f2ff. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB200715010.
Overture (Suite) in G Minor, Op. 1, No. 7: II. Passacaille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a375f73eadf9f8aaed9bb8cda6e2f72fd46211919a12178d1056c8419ead5a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEB200715013.
Overture (Suite) in G Minor, Op. 1, No. 7: III. Bouree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab8d9b534e1e55636769f9add7003616214ea223e5516bd0c4cf72398b3fc08. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB200715014.
Overture (Suite) in B-Flat Major, Op. 1, No. 3: III. Gavotte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4b94a6621ee00a6e83ff752ed60baddf0ff591509d4e904ec948e16a7a34ca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB200715018.
Overture (Suite) in B-Flat Major, Op. 1, No. 3: IV. Chaconne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25fd8eadb76c09f0f1f6e4b05ef591d643162933f0d0c9e377158268b2ddca8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEB200715019.
Overture (Suite) in D Minor, Op. 1, No. 4: IV. Gavotte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37a0c5781651d40fc12d31d847f65327052a6f643b4e113ed76f41e885edd60. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB200715023.
Overture (Suite) in F Major, Op. 1, No. 6: I. Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc42f78a1df4a5ef12e6df734f2ff039a7cc22ed9632d3e3a77f971a29b01822. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB200715026.
Overture (Suite) in F Major, Op. 1, No. 6: VIII. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5880277893be9866b8d14f2bee4b507efff562a0d393a39b8d91a0273fb567fe. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEB200715033.
Fischer: Missa St. Michaelis Archangeli, Missa in Contrapuncto & Suite No. 1
Johann Caspar Ferdinand Fischer: Musicaliches Parnassus
Suite in G Minor 'Terpsichore' from Musicalischer Parnassus (clavichord)
Euterpe from the Musicalischer Parnassus (harpsichord)
Polymnia from the Musicalischer Parnassus (clavichord)
Clio from the Musicalischer Parnassus (clavichord)
Erato from the Musicalischer Parnassus (clavichord)
Urania from Musicalischer Parnassus (clavichord)
Johann Caspar Ferdinand Fischer: Les pièces de clavessin, Op. 2. Suites Nos. 1 - 3
Fischer: Suite in D Minor, Op. 1, No. 4 ('Le journal du Printemps'): VI. Passacaille [Live]
Suite in D Minor, Op. 1, No. 4 "Le journal du Printemps": VI. Passacaille - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3033dd80d35b036db6cbfc27ed83b10989feb3ca9608990b2760cc591b6643de. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FROV62540506.