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track: Divertimento in D Major, K. 136: I. Allegro
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  by artist: Florian Heyerick
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  genre: classical
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    date published: 2026-07-08T08:56:20Z
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track: Concerto in D Major for Trumpet, Strings & B.C.: II. Allegro
track: Concerto in D Major for Trumpet, Violin, Strings & B.C.: II. Vivace
track: Serenade in G Major, K. 525 "Eine, kleine nachtmusik": I. Allegro
track: Serenade in G Major, K. 525 "Eine, kleine nachtmusik": IV. Rondo. Allegro
track: Concerto in D Major for Trumpet, Strings & B.C.: I. Adagio
track: Concerto in D Major for Trumpet, Strings & B.C.: III. Grave
track: Concerto in D Major for Trumpet, Violin, Strings & B.C.: I. Allegro

Concerto in D Major for Trumpet, Strings & B.C.: II. Allegro
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by artist: Otto Sauter
by artist: Kurpfälzisches Kammerochester Mannheim
by artist: Nicol Matt
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  date published: 2026-07-08T08:56:20Z
audio: Concerto in D Major for Trumpet, Strings & B.C.: II. Allegro
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Concerto in D Major for Trumpet, Violin, Strings & B.C.: II. Vivace
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by artist: Otto Sauter
by artist: Kurpfälzisches Kammerochester Mannheim
by artist: Nicol Matt
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  date published: 2026-07-08T03:20:19Z
audio: Concerto in D Major for Trumpet, Violin, Strings & B.C.: II. Vivace
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Serenade in G Major, K. 525 "Eine, kleine nachtmusik": I. Allegro
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duration: PT5M16S
duration ms: 316306
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerochester Mannheim
by artist: Florian Heyerick
in album: Top 50 Mozart
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popularity: 4
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T03:35:13Z
audio: Serenade in G Major, K. 525 "Eine, kleine nachtmusik": I. Allegro
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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

Serenade in G Major, K. 525 "Eine, kleine nachtmusik": IV. Rondo. Allegro
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duration: PT3M56S
duration ms: 236920
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by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerochester Mannheim
by artist: Florian Heyerick
in album: Top 50 Mozart
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popularity: 4
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Serenade in G Major, K. 525 "Eine, kleine nachtmusik": IV. Rondo. Allegro
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Concerto in D Major for Trumpet, Strings & B.C.: I. Adagio
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by artist: Kurpfälzisches Kammerochester Mannheim
by artist: Nicol Matt
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T22:27:30Z
audio: Concerto in D Major for Trumpet, Strings & B.C.: I. Adagio
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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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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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Concerto in D Major for Trumpet, Strings & B.C.: III. Grave
type: MusicRecording
duration: PT1M26S
duration ms: 86280
explicit: false
by artist: Georg Philipp Telemann
by artist: Otto Sauter
by artist: Kurpfälzisches Kammerochester Mannheim
by artist: Nicol Matt
in album: Trumpet Concertos
  type: MusicAlbum
  date published: 2013-10-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd643c742201a4683700ef229fd04495949277666ced17ac72ff4294443f721aa. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLY331011705.
  date published: 2026-07-31T15:20:15Z
audio: Concerto in D Major for Trumpet, Strings & B.C.: III. Grave
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.928
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.39
  additional property: Energy
    type: PropertyValue
    value: 0.073
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.76
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.347
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.299
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.939
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: NLY331011705
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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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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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15+00:00
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

Concerto in D Major for Trumpet, Violin, Strings & B.C.: I. Allegro
type: MusicRecording
duration: PT1M36S
duration ms: 96200
explicit: false
by artist: Georg Philipp Telemann
by artist: Otto Sauter
by artist: Kurpfälzisches Kammerochester Mannheim
by artist: Nicol Matt
in album: Trumpet Concertos
  type: MusicAlbum
  date published: 2013-10-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc564a8d77514f2240bd1b3c2319b161b39f05e31dcc78b49ffd3010269339ab. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLY331011706.
  date published: 2026-07-31T08:26:41Z
audio: Concerto in D Major for Trumpet, Violin, Strings & B.C.: I. Allegro
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.615
  additional property: Energy
    type: PropertyValue
    value: 0.572
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.84
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.751
  additional property: Liveness
    type: PropertyValue
    value: 0.075
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.358
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.765
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    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLY331011706
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331011706
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
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