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type: MusicGroup
genre: chamber music
popularity: 3
followers: 23
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-21T18:08:38Z
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album: Intégrale Des Sonates Et Diverses Pièces Pour Orgue
  type: MusicAlbum
  date published: 2009-11-02
album: Wagner, Liszt, Reubke
  type: MusicAlbum
  date published: 2018-03-13
album: Organ - Händel, Bach
  type: MusicAlbum
  date published: 2019-02-21
album: B.A.C.H
  type: MusicAlbum
  date published: 2025-04-18
track: Violin Sonata No. 18 in G Major, K. 301 (arr. A. Kniazev): I. Allegro con spirito
track: Violin Sonata No. 27 in G Major, K. 379 (arr. A. Kniazev): I. Adagio
track: Violin Sonata No. 27 in G Major, K. 379 (arr. A. Kniazev): II. Allegro
track: Violin Sonata No. 18 in G Major, K. 301 (arr. A. Kniazev): II. Allegro

Violin Sonata No. 18 in G Major, K. 301 (arr. A. Kniazev): I. Allegro con spirito
type: MusicRecording
duration: PT10M35S
duration ms: 635546
explicit: false
by artist: Alexander Kniazev
by artist: Wolfgang Amadeus Mozart
by artist: Edouard Oganessian
in album: Mozart: Violin Sonatas Nos. 18, 24, and 27 (Arr. for Cello)
  type: MusicAlbum
  date published: 2000-01-01
genre: classical
isrc code: GBJZY0500142
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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
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3ae0813d4087c2d813b357509c989bbb0b15c783d9918ea52e92f31e5094d3. 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/GBJZY0500142.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 18 in G Major, K. 301 (arr. A. Kniazev): I. Allegro con spirito
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Violin Sonata No. 27 in G Major, K. 379 (arr. A. Kniazev): I. Adagio
type: MusicRecording
duration: PT14M1S
duration ms: 841706
explicit: false
by artist: Alexander Kniazev
by artist: Wolfgang Amadeus Mozart
by artist: Edouard Oganessian
in album: Mozart: Violin Sonatas Nos. 18, 24, and 27 (Arr. for Cello)
  type: MusicAlbum
  date published: 2000-01-01
genre: classical
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T05:48:18Z
audio: Violin Sonata No. 27 in G Major, K. 379 (arr. A. Kniazev): I. Adagio
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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 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

Violin Sonata No. 27 in G Major, K. 379 (arr. A. Kniazev): II. Allegro
type: MusicRecording
duration: PT11M9S
duration ms: 669720
explicit: false
by artist: Alexander Kniazev
by artist: Wolfgang Amadeus Mozart
by artist: Edouard Oganessian
in album: Mozart: Violin Sonatas Nos. 18, 24, and 27 (Arr. for Cello)
  type: MusicAlbum
  date published: 2000-01-01
genre: classical
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T01:44:32Z
audio: Violin Sonata No. 27 in G Major, K. 379 (arr. A. Kniazev): II. Allegro
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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 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

Violin Sonata No. 18 in G Major, K. 301 (arr. A. Kniazev): II. Allegro
type: MusicRecording
duration: PT5M29S
duration ms: 329706
explicit: false
by artist: Alexander Kniazev
by artist: Wolfgang Amadeus Mozart
by artist: Edouard Oganessian
in album: Mozart: Violin Sonatas Nos. 18, 24, and 27 (Arr. for Cello)
  type: MusicAlbum
  date published: 2000-01-01
genre: classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a287f5adf3bede553840ff2aff72f76fd6de2f353c4006cf50ac50c8c06706. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBJZY0500143.
  date published: 2026-07-31T13:04:34Z
audio: Violin Sonata No. 18 in G Major, K. 301 (arr. A. Kniazev): II. Allegro
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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 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