Christoph Graupner (10 May 1760) was a German composer and harpsichordist of late Baroque music who was a contemporary of Johann Sebastian Bach, Georg Philipp Telemann and George Frideric Handel. Lif
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 0xeb2daf2b905ee20daa25db2c45bfbc249ff92712792ced2308f302abe69dd47c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0e5c3c3-824a-4194-8402-764e1cd906b2.json and https://artists.proofprofile.net/proofs/artist/f0e5c3c3-824a-4194-8402-764e1cd906b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Christoph Graupner: Fagott- und Violinkonzerte
Violin Concerto in A Major, GWV 337: I. Allegro
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca689c6098399e60c28c141df3644e4cdd4762d69559579270063d32b87e8cc9. 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/DEB111003108.
Bassoon Concerto in C Major, GWV 301: I. Vivace
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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
Graupner : Intégrale des sonates pour violon et clavecin
Graupner: Duo Cantatas for Soprano & Alto
Overture in F Major, GWV 445: V. Le Desire
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0ed00097196e843284a86fd7d6feac94042b7f0286d1799b8d5c34d539bb88. 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/DEB901800902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc37d6cf0f45268de5c0972b0a4c494b4b6e7bef2b47be8297ae786afd83f821. 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/DEB901800905.
Waffne dich mein Geist zu kämpfen, GWV 1148/20: Aria
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Waffne dich mein Geist zu kämpfen, GWV 1148/20: Recitative
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Waffne dich mein Geist zu kämpfen, GWV 1148/20: Recitativo II
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Wenn wir in höchsten Nöten sein, GWV 1143/12: Recitativo accompagnato
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ced305ebc35972221595f0a88e6f478ec5141786589c1d980a47b765d997d7. 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/DEB901800918.
Weg, verdammtes Sündenleben, GWV 1147/20: Aria
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Weg, verdammtes Sündenleben, GWV 1147/20: Aria II
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82675dc0eeb35445da64b7623e74c45f21cb7fee8161ce7b5c137567e5d4f161. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEB901800903.
Demütiget euch nun, GWV 1144/12: Recitativo accompagnato
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Trio Sonata in D Major, GWV 204: I. Affettuoso
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Waffne dich mein Geist zu kämpfen, GWV 1148/20: Aria II
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Waffne dich mein Geist zu kämpfen, GWV 1148/20: Duet
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Canon in B-Flat Major, GWV 218: I. Grave
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Wenn wir in höchsten Nöten sein, GWV 1143/12: Choral
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Wenn wir in höchsten Nöten sein, GWV 1143/12: Aria à 2
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Wenn wir in höchsten Nöten sein, GWV 1143/12: Aria à 2 II
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Wenn wir in höchsten Nöten sein, GWV 1143/12: Duet
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Weg, verdammtes Sündenleben, GWV 1147/20: Duet
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Graupner: Solo & Dialogue Cantatas, Vol. 2
Graupner: Complete Cantatas for two sopranos and bass
Der Herr ist auferstanden: Arias & Duets for Eastertide
Der Sieg ist da, GWV 1128/43: No. 7, Jesus, der mein Heiland
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Der Sieg ist da, GWV 1128/43: No. 1, Der Sieg ist da
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Das Leiden Jesu: Passion Cantatas, Vol. 4
Das Leiden Jesu: Passion Cantatas, Vol. 3
Graupner: Das Leiden Jesu – Passion Cantatas, Vol. 1
Graupner & Telemann: Trios for Viola d’amore and Flute
Oboe d'amore Concerto in C Major, GWV 302: I. Vivace
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Oboe d'amore Concerto in C Major, GWV 302: II. Tempo giusto
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Oboe d'amore Concerto in C Major, GWV 302: III. Allegro
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Graupner: Himmlische Stunden, selige Zeiten
Early Birds, Works for Recorder by Georg Friedrich Händel, Jacob Van Eyck, François Couperin, Louis-Claude Daquin, Johann Adolph Hasse, Christoph Graupner and Georg Philipp Telemann
Graupner: Chalumeaux - Concertos, ouvertures & sonatas
Ouverture a 3 Chalum. 2 Violis. Viola e Cembalo F-Dur GWV 449: La Speranza amoroso
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Concerto a 2 Chalumeaux, 2 Violis. Viola e Cembalo C-Dur GWV 303: Vivace
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Graupner: The Seven Words of Christ on the Cross
Christoph Graupner: Wo gehet Jesus hin. Passionskantaten
Kantate am 1. Advent "Die Nacht ist vergangen", GWV 1101/22: III. Aria. Angenehmster Tag der Gnaden
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Kantate am 1. Advent "Die Nacht ist vergangen", GWV 1101/22: I. Coro. Die Nacht ist vergangen, der Tag aber herbei kommen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c24bc2978cc1f35a46857e0615bb23bc54866271bd24a66107e975eba33dfc. 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/BER181030701.
Kantate am 2. Advent "Heulet, denn des Herrn Tag ist nahe", GWV 1102/26: V. Aria. Eilt nur fort, ihr Jammertage
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Graupner, C.: Partitas, Gwv 121, 133, 149
Graupner: Partitas For Harpischord Vol.6 Frühling & Winter
Graupner: Darmstadt Harpsicord Book (Partitas For Harpsichord, Vol. 5)
Partita in A Minor, GWV 150: II. Courante
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Partita in A Minor, GWV 150: IV. Rigaudon en rondeau
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Partita in A Minor, GWV 150: V. Menuets I & II alternativement
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Partita VI in E Major, GWV 106 & 119: IV. Menuet I & II (Alternativement)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8201d3a45bbc0a6b206ce3d8151352e2fb47d442e8c1387353d11baac54675b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USA370557823.
Partita VI in E Major, GWV 106 & 119: II. Courante
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Partita VI in E Major, GWV 106 & 119: V. Gavotte en rondeau
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Graupner: Partitas for Harpsichord, Vol.3 - Partien, GWV 103 & 150; Februarius, GWV 110:
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Graupner: Cantate, Sonate, Ouverture: Instrumental and Vocal Music, Vol. 2