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subject of: OpenTimestamps Proof of Existence
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album: Jean Baur: Chamber Music
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  date published: 2023-06-30
  track: Cello Sonata in G Minor, Op. 1 No. 4: II. Allegro
  track: Cello Sonata in G Minor, Op. 1 No. 4: III. Adagio
  track: Cello Sonata in G Minor, Op. 1 No. 4: IV. Allegro
  track: Cello Sonata in B-Flat Major, Op. 2 No. 2 "La Dupleïx": I. Allegro
  track: Cello Sonata in B-Flat Major, Op. 2 No. 2 "La Dupleïx": II. Adagio amoroso
  track: Sonata for Harp with Singing Accompaniment of Keyboard in B-Flat Major, Op. 8 No. 3: I. Allegro
  track: Cello Sonata in G Minor, Op. 1 No. 4: I. Adagio
album: Hommage à la Dauphine
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  date published: 2011-12-26

Cello Sonata in G Minor, Op. 1 No. 4: II. Allegro
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by artist: Elinor Frey
by artist: Antoine Malette-Chénier
by artist: Octavie Dostaler-Lalonde
by artist: Mélisande Mcnabney
in album: Jean Baur: Chamber Music
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  date published: 2023-06-30
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Cello Sonata in G Minor, Op. 1 No. 4: III. Adagio
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by artist: Octavie Dostaler-Lalonde
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Cello Sonata in G Minor, Op. 1 No. 4: III. Adagio
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Cello Sonata in G Minor, Op. 1 No. 4: IV. Allegro
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by artist: Elinor Frey
by artist: Antoine Malette-Chénier
by artist: Octavie Dostaler-Lalonde
by artist: Mélisande Mcnabney
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Cello Sonata in G Minor, Op. 1 No. 4: IV. Allegro
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Cello Sonata in B-Flat Major, Op. 2 No. 2 "La Dupleïx": I. Allegro
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by artist: Elinor Frey
by artist: Octavie Dostaler-Lalonde
by artist: Mélisande Mcnabney
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Cello Sonata in B-Flat Major, Op. 2 No. 2 "La Dupleïx": II. Adagio amoroso
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T12:53:06Z
audio: Cello Sonata in B-Flat Major, Op. 2 No. 2 "La Dupleïx": II. Adagio amoroso
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Sonata for Harp with Singing Accompaniment of Keyboard in B-Flat Major, Op. 8 No. 3: I. Allegro
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  value: https://explorer.copyrightchains.com/tx/0xb7b7345fc18ae278ddef7b2aa818071c01069893e7d82e25c3cff5a6e060ee76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE022212308
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b7345fc18ae278ddef7b2aa818071c01069893e7d82e25c3cff5a6e060ee76. 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/BEE022212308.
  date published: 2026-07-08T03:20:19Z
audio: Sonata for Harp with Singing Accompaniment of Keyboard in B-Flat Major, Op. 8 No. 3: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.968
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.418
  additional property: Energy
    type: PropertyValue
    value: 0.159
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.902
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.499
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.866
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cello Sonata in G Minor, Op. 1 No. 4: I. Adagio
type: MusicRecording
duration: PT0M44S
duration ms: 44680
explicit: false
by artist: Jean Baur
by artist: Elinor Frey
by artist: Antoine Malette-Chénier
by artist: Octavie Dostaler-Lalonde
by artist: Mélisande Mcnabney
in album: Jean Baur: Chamber Music
  type: MusicAlbum
  date published: 2023-06-30
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacadbd2ee1e379fe410ffe5ab83028cdd644a976d07f2af2d26bb95d295a4aa9. 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/BEE022212301.
  date published: 2026-07-31T13:04:34Z
audio: Cello Sonata in G Minor, Op. 1 No. 4: I. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 81.521
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.25
  additional property: Energy
    type: PropertyValue
    value: 0.026
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.893
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.869
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.046
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.571
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: BEE022212301
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960403
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T13:04:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE022212301
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34+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