Martin Kerschbaum
type: MusicGroup
popularity: 10
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/50e9020f-5331-4b3c-98cf-e5666282399d.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4131c990261e1ef2c92a2c3d48942b1acf28f4edb84eb96d447c4986f7b49a9. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50e9020f-5331-4b3c-98cf-e5666282399d.json and https://artists.proofprofile.net/proofs/artist/50e9020f-5331-4b3c-98cf-e5666282399d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
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album: The Essentials: Mozart
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  date published: 2016-04-29
  track: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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    by artist: Capella Istropolitana
    by artist: Wolfgang Sobotka
    in album: The Essentials: Mozart
      type: MusicAlbum
      date published: 2016-04-29
    popularity: 2
    genre: classical
    genre: classical-era
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0b8dd2412ec5f0bc1bba92992f1b5fc854f65dffc659558920f89e432cb2c5. 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/USB8U1601061.
      date published: 2026-07-08T03:53:27Z
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  track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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    by artist: Bavarian Radio Symphony Orchestra
    by artist: Rafael Kubelík
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      type: MusicAlbum
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    popularity: 2
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    genre: classical-era
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
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      value: 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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
    audio: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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  track: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
  track: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
  track: Così fan tutte, K. 588: Overture
  track: Idomeneo, re di Creta, K. 366: Overture
album: Alfred Huber: Chamber Music
album: A Life in Sections: Dioskouroi
album: Paganini: Violin Works
album: Telemann, Weber, Baksa & Bruch: Viola Concertos
album: Mozart: Violin Concertos, Vol. 1
album: Haydn: Cello Concertos

Le couvent du Mont Saint Bernard: I. Andante sonnolento
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duration: PT2M12S
duration ms: 132866
explicit: false
by artist: Niccolò Paganini
by artist: Wiener Singverein
by artist: Mario Hossen
by artist: Vienna Classical Players
by artist: Martin Kerschbaum
in album: Paganini: Violin Works
  type: MusicAlbum
  date published: 2018-01-19
isrc code: ITN321717106
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Le couvent du Mont Saint Bernard: I. Andante sonnolento
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Le couvent du Mont Saint Bernard: III. Rondo del campanello
type: MusicRecording
duration: PT8M7S
duration ms: 487986
explicit: false
by artist: Niccolò Paganini
by artist: Wiener Singverein
by artist: Mario Hossen
by artist: Vienna Classical Players
by artist: Martin Kerschbaum
in album: Paganini: Violin Works
  type: MusicAlbum
  date published: 2018-01-19
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfffc03684ef6871adb57ce979ed574f2ab81b952489a3cf0cf511f3497726c. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ITN321717108.
  date published: 2026-07-30T07:48:45Z
audio: Le couvent du Mont Saint Bernard: III. Rondo del campanello
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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

Andante e rondo ongarese in C Minor, Op. 35: II. Rondo ongarese
type: MusicRecording
duration: PT6M0S
duration ms: 360080
explicit: false
by artist: Carl Maria von Weber
by artist: Herbert Kefer
by artist: Martin Kerschbaum
by artist: Symphonieorchester Vorarlberg
in album: Telemann, Weber, Baksa & Bruch: Viola Concertos
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genre: classical
genre: opera
isrc code: GBAJU1700115
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Andante e rondo ongarese in C Minor, Op. 35: II. Rondo ongarese
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Romanze for Viola and Orchestra in F Major, Op. 85
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duration ms: 498986
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by artist: Max Bruch
by artist: Herbert Kefer
by artist: Martin Kerschbaum
by artist: Symphonieorchester Vorarlberg
in album: Telemann, Weber, Baksa & Bruch: Viola Concertos
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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Così fan tutte, K. 588: Overture
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Idomeneo, re di Creta, K. 366: Overture
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Alfred Huber: Chamber Music
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A Life in Sections: Dioskouroi
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Paganini: Violin Works
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Mozart: Violin Concertos, Vol. 1
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Haydn: Cello Concertos
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